Mark Adler Junior 4.3 Office Chair for Children Pink-Grey

Mark Adler Junior 4.3 – a rotating armchair for children that adapts to growth

Junior 4.3 is an ergonomic children's chair created with comfort at the desk and safe, stable positioning during learning in mind. The adjustments have been designed so that the chair can "grow" together with the user in the height range of 90–150 cm, while remaining simple to operate – even on a daily basis.

• Height adjustment range: 90–150 cm – ergonomic support for years.
• Seat height and depth adjustment – better leg support and comfortable positioning.
• Quick adjustment knobs under the armrests – adjustment without searching for levers.
• Foldable armrests 0–90° – easy insertion under the desk and space saving.
• Adjustable, removable footrest – helpful especially for younger children.
• Gravity wheels – stability while sitting and mobility when standing up.
• Breathable materials (mesh) and high-density foam seat.
• Assembly without screws – quick, intuitive assembly.

Backrest height adjustment – a chair that keeps up with changes

Backrest can be adjusted to the child's height so the back has proper support at every stage of development. Adjustment is convenient thanks to knobs placed on both sides of the chair – access to the mechanism is located under the armrests, which makes daily adjustments easier.

• Adjustment to user's height: 90–150 cm.
• Adjustment using knobs on both sides – quick and intuitive.
• Seat height: 46–56 cm – mechanism activated from 25 kg.
• Protection against accidental setting changes during use.

Advanced adjustment – proper leg support and comfortable positioning

Seat depth adjustment helps set proper leg support, which promotes comfort at the desk. Additionally, the solution synchronizes settings so that with a change in backrest height, it is easier to maintain an ergonomic, healthy sitting position.

• Seat depth adjustment – adaptation to leg length.
• Synchronization of settings with backrest height – consistent ergonomics.

Armrests 0–90° – order at the desk and more space

Foldable armrests allow you to change the chair's position in a few seconds. Once folded, it can be pushed deeper under the desktop, which helps maintain order and works especially well where the child's room has limited space.

• Folding range: 0–90°.
• Ability to completely insert the chair under the desk.
• More comfortable use in smaller rooms.

Gravity wheels – stability while sitting

When a child sits, the wheels automatically lock under load, which increases stability. After standing up, the chair regains mobility, and the smooth surface of the wheels makes them easier to keep clean – also with intensive, daily use.

• Automatic locking under load.
• Unlocking after standing up – easy chair repositioning.
• Resistance to moisture and dirt, easier cleaning.

Breathable materials and lightweight construction – comfort in daily rhythm

The mesh backrest promotes air flow, which helps maintain thermal comfort even during longer activities. The high-density foam seat is designed to withstand regular use and maintain elasticity, while the whole remains lightweight, so moving the chair is not a problem.

• Mesh on backrest – constant air circulation.
• High-density foam – resistance to deformation.
• Durable, pleasant to touch upholstery.
• Quick setup – assembly without screws and tools.

Adjustable footrest – foot support when needed

The footrest makes it easier to set a comfortable position for younger children, providing stable foot support. It can be adjusted and later – when the child grows – completely removed, leaving the chair in a more "youth" configuration.

• Adjustment adapted to user's height.
• Possibility of removal at a later stage.