Roller for massage and rehabilitation Tullo duoball 15.5 cm black 449 Duoball Tullo recommended for body massage, exercise fitness, rehabilitation, yoga and therapy sensory integration. It will be also useful when playing with children as a variety of group activities. The design looks like two balls connected together. " Hedgehogs are very helpful in treating valgus of lower limbs and flat feet in children. Finishing with conical spikes through massage stimulates sensory receptors and improves blood flow.  Technical data:· length: 15.5 cm· manufactured in Poland from the highest quality attested raw materials does not contain phthalates, BPA, heavy metals· warning: product must wash before use· age: 6 · price for 1 piece