Antlu Saddle Stool Chair with Back Support, Ergonomic Esthetician Stool Chair for Salon Tattoo Spa Medical Dentist Clinic (with Adjustable Backrest, Black)Ergonomic : This saddle stool chair design for extra comfort on your back and spine,this design reduces painful pressure on your back. Tilting backrest design : The back of this saddle chair is adjustable, the adjustment Angle is 80 to 110 , which can meet the needs of most people. Rotation : The cushions and wheels are free to rotate, you can use this saddle swivel stool to roll freely in the room. Suitable for kitchen, living room,office, clinic,