The Claudia technician stool with gas lift by Mayakoba has a backrest that is designed for therapist to use during professional treatments and beauty.
Details & Specs:
Size: 12.60'' x 12.60'' x 20.47''-26.77'' 
Chromes base with PU casters and 160 SGS certified gas lift, with strong bearing capacity and gliding smooth
Molded foam with high density; strong bearing PU casters; thickened metal base to prevent cracking; good looking electroplated chair base; SGS certified gas spring