Mark Adler Junior 4.3 Children's Office Chair Blue-Grey

Mark Adler Junior 4.3 – children's swivel chair with "years of growth" adjustment

Junior 4.3 was designed for everyday desk sitting – when children do homework, draw, or spend time at the computer. The construction was planned to easily adapt the chair to a growing user, offering ergonomic back support and more comfortable leg positioning. Day-to-day details matter: quick adjustment with knobs, folding armrests that make it easier to push under the desk, flexible footrest for younger children, and breathable materials. Everything is completed with gravity casters, which support stability while sitting and ensure mobility when standing up.

Backrest height under control – adjustment for heights 90–150 cm

The adjustable backrest means the chair "keeps up" with the child at different developmental stages. The mechanism is easily accessible because the knobs are placed on both sides of the chair – under the armrests. This allows settings to be made quickly and conveniently, without unnecessary twisting of the entire structure.

• Adjustment for child height from 90 to 150 cm.
• Backrest adjustment with convenient side knobs.
• Seat height range 46–56 cm.
• Mechanism activated from 25 kg – greater setting safety.

Depth adjustment – more comfortable leg support

Proper positioning of thighs and knees significantly affects comfort at the desk. Junior 4.3 offers seat depth adjustment, and the solution works in a way that helps maintain ergonomic proportions – seat settings work in sync with backrest height.

• Possibility of adjusting seat depth for better leg support.
• Synchronization of settings with backrest height – easier to maintain a healthy posture.
• Comfort for both short study sessions and longer work.

Armrests 0–90° – more space in the child's room

Folding armrests are a simple way to better organize space. Just tilt them to push the chair under the desk and gain more free movement space – especially in smaller rooms.

• Tilt range 0–90°.
• Easy positioning of the chair to the desk and maintaining order.
• Greater freedom in small spaces.

Gravity casters – more stable when you sit

Gravity casters support safety while sitting: under load they can automatically limit uncontrolled sliding. When the child stands up, the chair remains mobile and easy to move. An additional advantage is easier cleaning and resistance to dirt and moisture.

• Automatic lock under load – greater stability.
• Unlock when standing – smooth chair movement.
• Smooth surface – simpler everyday maintenance.

Breathable materials and solid construction – comfort without compromise

In Junior 4.3, the backrest is made of breathable mesh fabric, which supports air circulation. The seat with high-density foam ensures comfort and resistance to deformation, and the lightweight, durable frame makes everyday repositioning easier. Additionally, the chair can be folded quickly, without screws or tools.

• Mesh on backrest – better thermal comfort.
• High-density foam – elasticity for longer.
• Lightweight and solid construction – easy use by children.
• Tool-free assembly – quick, intuitive folding.

Adjustable and removable footrest – support for younger users

The adjustable footrest helps position feet more comfortably, making it easier to maintain a stable sitting position in younger children. As the child grows, the element can be removed so the chair fits the next stage of development.

• Comfortable foot support for younger children.
• Adjustment matched to user height.
• Removable option when the footrest is no longer needed.