Item description Technical data: - BPA-free (without bisphenol A) - made without plasticizers - material: PVC - non-slip due to roughened surface - with air pump for hand or foot operation - sealing plug - size: 25cm Areas of application: - Pilates - exercise ball - sitting ball - yoga ball - Yoga - Gymball - Pregnancy gymnastics - Low-impact exercises - Obstetrics - Physiotherapy - Rehabilitation - Sitting in the office - Back pain Application in sports: - Abdominal training - Gymnastic exercises - Back school - Back training - Rhythmic gymnastics - Strengthening the muscles of the back, stomach and buttocks If the If the exercise ball is to be used more as a sitting ball, the length of the lower leg is used as a guide to size.