Tullo Diamond Sensory Hemisphere Properties: Tullo Diamond Sensory Hemisphere The Tullo sensory hemisphere is a great accessory for both children and adults. The structure is made of durable material free of BPA and heavy metals. Using the hemisphere brings a number of health benefits, such as: correcting posture defects, exercising balance, stimulating blood circulation, stimulating sensory receptors, treating flat feet and valgus of the lower limbs in children, and reducing muscle tension. Size: 16 cm Color: green