Maclean Keyboard Shelf, black, dimensions 66x30cm, for mounting on office chair, max. 5kg, MC-139

A keyboard tray mounted to an office chair. A comfortable workspace always at hand.
The practical „Maclean MC-139“ keyboard tray, mounted to an office chair, is a functional solution for those who want to create a more comfortable, ergonomic, and flexible workspace without needing to expand their desk. This product is perfect for a home office, computer station, or studio, as well as anywhere else where saving space and flexibly arranging computer accessories is important.
The tray attaches directly to the column of the office chair, keeping it close to the user. It allows for convenient placement of the keyboard, mouse, or other essential accessories, reducing the need to bend over to the desk and improving daily computer work comfort.
MOUNTING TO OFFICE CHAIR COLUMN WITH HEIGHT ADJUSTMENT
The MC-139 tray is designed to mount to the column of an office chair or armchair. This solution allows for a compact workspace that moves with the chair and is easily accessible. This is especially practical when desk space is limited, for workspaces performing multiple tasks, or in situations where a traditional pull-out keyboard tray is not possible.
Height adjustment allows for the tray position to be tailored to the user's height, seat height, and individual work preferences. This allows for setting the worktop at a height that is comfortable for moving the forearm and using the keyboard even during long computer sessions. This is an important ergonomic feature that helps better adapt the workspace to the user rather than forcing them to work in a single, rigid posture.
This design creates an additional working surface next to the chair, allowing the keyboard to be placed closer to the body and giving the user better control of their working position. This is a convenient solution for computer users, gamers, managing technical workspaces, or using monitors on the desk.

TILT AND ROTATION ADJUSTMENT FOR MAXIMUM WORK COMFORT
One of the main advantages of the MC-139 tray is the adjustable tilt and rotation. This allows for easy adaptation of the worktop to the sitting position, chair height, arm position, and keyboard usage. The adjustment features allow for more comfortable typing on the tray, stretching the wrists and forearms into a more natural position.
The rotation function enhances the daily functionality of the product. While working, the tray can be positioned directly in front of you, and when not in use, it can be moved or rotated. This practical solution makes it easier to get up from the chair, change position, and organize the space around the computer workstation.
LARGE WORKTOP 66x30 CM WITH WRIST REST
The top of the tray measures 66 x 30 cm, making it convenient to hold not only a standard keyboard but also a mouse, pad, laptop, or other small work-related accessories. The wide top provides more freedom than traditional narrow keyboard holders, making it more comfortable.
A surface of this size is perfect for working in an office, studying, using a multimedia computer, or gaming. It is a good choice for those who need a stable and comfortable keyboard but do not want to take up extra space on the desk.
The included wrist rest increases comfort while typing and working longer hours on the computer. It provides practical support for the arms, helps reduce fatigue, and improves keyboard comfort. This is especially important for those who spend many hours a day on the computer and expect their workspace to be not only functional but also better suited to their daily habits.

Specification - Producer: Maclean
- Model: MC-139
- Color: black
- Frame material: powder-coated steel
- Worktop material: particle board
- Maximum load: 5 kg
- Worktop dimensions: 66x30 cm
- Worktop thickness: 18 mm
- Wrist rest length: 40 cm
- Tube height: 640 mm
- Tube length: 400 mm
- Tube diameter: 35 mm
- Handle length: 360 mm
- Tube diameter for mounting to armchair/chair: 43 mm

The package includes - „Maclean MC-139“ keyboard tray / case
- Mounting accessories
- Assembly instructions
- Manufacturer's packaging

ERGONOMIC SOLUTION FOR SMALL OFFICE AND REMOTE WORK
A keyboard case attached to an office chair helps better organize the workspace, especially where every centimeter of space is important. It can be an alternative to a traditional keyboard drawer, an additional table, or a large computer table. By attaching it to the chair, the user gets a mobile workspace that can be adapted to existing needs.
The combination of height, tilt, and rotation adjustments allows for precise positioning of the tray relative to the sitting position. This allows for creating a more ergonomic workspace without changing the desk or purchasing additional furniture. This solution is especially beneficial in home offices, small rooms, offices, gas stations, and anywhere else where a standard keyboard configuration on the desk does not provide sufficient comfort.
VERSATILE APPEARANCE AND PRACTICAL USE
The black, minimalist design MC-139 tray fits with most office chairs and armchairs, as well as modern computer workstations. The simple design gives the product aesthetic appeal and does not visually overwhelm office space. Once installed, it creates a functional side and front work surface that increases the comfort of computer usage.
The tray can be used not only as a keyboard stand but also, depending on your needs, as a convenient work surface for a controller, tablet, laptop, documents, small electronic devices, or other accessories that may be needed for work.

Characteristics - Attachment to office chair column – the handle attaches directly to the chair column, keeping it close to the user and moving with the chair
- Adjustable mounting height on the post, allowing for the tray position to be tailored to the user's height, seat height, and individual working position
- Adjustable worktop tilt, allowing the tray to be set at a comfortable angle, facilitating typing and helping to better position the hands and forearms
- Rotation function allows for positioning the tray in an optimal position during work and conveniently moving it when not in use
- Large 66x30 cm working surface provides space for the keyboard, mouse, tablet, laptop, or other accessories needed for use with a computer
- Wrist rest increases comfort during long typing sessions and provides practical support for your hands
- By saving space on the desk, the tray helps organize the workspace and frees up the desk from the keyboard and additional accessories
- Ergonomic keyboard layout allows the keyboard to be positioned closer to the body, which can improve working comfort and reduce the need to lean over the desk.
- Practical use in home and office environments, ideal for small spaces, computer stations, offices, workshops, and places where flexible work organization is important.
- Universal, minimalist appearance – the black construction fits well with most office chairs and modern computer workstations