T-shaped chair, height-adjustable, No. 4-7
Dimensions: 391х485х740-860 mm. Weight: 5,3 kg.
Seat back size: 380х200 mm. Seat size: 380х350 mm.
The chair is intended for furnishing of training rooms of educational institutions.
The chair can be adjusted in height:
380 mm (№4) – for pupils with height from 1450 mm up to 1600 mm;
420 mm (№5) – for pupils with height from 1600 mm up to 1750 mm;
460 mm (№6) – for pupils with height from 1750 mm;
500 mm (№7) – for pupils with height more than  1850 mm.
The chair consists of overlaid seat, seat back and metal frame.
width – 391 mm;
depth – 485 mm;
height – 740, 780, 820, 860 mm;
height to thе upper base of the seat – 380, 420, 460, 500 mm.
The seat and the seat back are made of sloping-glued plywood of 8-9 mm thickness. The edges of the seat and the seat back and the front  side of the seat have a radius of rounding to prevent injury. The  frame of the chair is made of flat-oval tube 30х15х1,2 mm, 38х20х1,2 mm  and 50х30х1,2 mm with applying of powder paint. The seat back and the  seat are fixed to the frame with the help of screws.
Adjustment  is imlemented through end-to-end nut-screw stitching with fixation of  cover nut inside the tube for impossibility of unscrew in the course of   shattering.  At  the lower part of the frame there is a hole in the form of a circle,  through which a marking of height groups can be seen while adjusting the  height on the right rack from the side of the pupil.
Plastic tips are fixed on the end faces of the frame which prevent injury to the pupils and damage to the floor.
Frame color: green (RAL6018), grey (RAL7035), yellow (RAL1018).