The Gymnic Physio Roll is ideal for therapeutic use, especially for those who have problems with balance and coordination. These Gymnic Physio Roll offer greater stability than regular, round therapy balls by limiting movement to forward and backward. The unique design of the Gymnic Physio Roll allows a therapist and a child to sit together on the Physio Roll. Children can also sit in the centre cradle for maximum comfort and support. Latex free 55cm (22") diameter x 90cm length Green 'peanut' for people 155-165cm (5'2" - 5'8") tall.