Mark Adler Junior 4.3 - children's adjustable swivel chair "for years to come"
Junior 4.3 was created for everyday sitting at a desk - when a child is doing homework, drawing or spending time at the computer. The design was planned to easily adjust the chair to the growing user, offering ergonomic back support and more comfortable leg positioning.
On a day-to-day basis, it's the details that count: quick knob adjustments, folding armrests that make it easy to slide under the tabletop, a flexible footrest for younger children, and breathable materials. The whole is complemented by gravity casters that promote stability while sitting and provide mobility when standing up.
Backrest height under control - adjusting to a height of 90-150 cm
The adjustable backrest makes the seat "keep up" with the child at the next stages of development. The mechanism is easily accessible, as the knobs are located on both sides of the chair - under the armrests. Thanks to this, the settings can be made quickly and conveniently, without unnecessary twisting of the entire structure.
Adjustment to the height of the child from 90 to 150 cm.
Adjustment of the backrest with convenient knobs on the sides.
Seat height in the range of 46-56 cm.
Mechanism activated from 25 kg - more secure settings.
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 to help maintain ergonomic proportions - the seat settings interact with the height of the backrest.
Adjustable seat depth for better leg support.
Synchronization of settings with the height of the backrest - easier to maintain a healthy position.
Comfort for both short study and longer work.
Armrests 0-90° - more space in the child's room
Folding armrests are a simple way to better organize space. Simply tilt them to slide the chair under the desk and gain more space to move freely - especially in smaller rooms.
0-90° tilt.
Easily slide the chair under the desk and stay organized.
More freedom in small rooms.
Gravity casters - more stable when you're seated
Gravity casters promote safety when sitting: under load, they can automatically limit uncontrolled movement. When the child gets up, the chair remains mobile and easy to move. An added benefit is easier cleaning and resistance to dirt and moisture.
Automatic locking under load - greater stability.
Unlocking when standing up - free movement of the chair.
Smooth surface - simpler daily care.
Breathable materials and robust construction - comfort without compromise
The Junior 4.3 has a backrest made of breathable mesh fabric that promotes air circulation. The seat with high-density foam takes care of comfort and resistance to deformation, and the lightweight, sturdy form makes daily repositioning easy. In addition, the chair can be folded quickly, without screws or tools.
Mesh on the backrest - better thermal comfort.
High-density foam - resilience for longer.
Lightweight and sturdy construction - easy use by a child.
Assembly without screws - quick, intuitive folding.
Adjustable and removable footrest - support for younger users
Adjustable footrest helps to rest the feet more comfortably, making it easier for younger children to maintain a stable sitting position. As the child gets older, the piece can be removed to make the seat fit the next stage of development.
Comfortable foot support for younger children.
Adjustable to fit the user's height.
Can be removed when the footrest is no longer needed.
Technical specifications:
Manufacturer
Mark Adler
Model
Junior 4.3
User height
90-150 cm
Maximum load
80 kg
Gas actuator
class 3
Backrest
mesh fabric
Seat
height 46-56 cm, depth adjustment 5 cm
Armrests
foldable 0-90°
Footrest
adjustable 10 cm, removable
Wheels
gravity, diameter 50 mm
Minimum load to activate the adjustment
25 kg
Mounting
without screws