... , applied in garden, villa, school, playground, hospital and so on.Perfect and ProfessionalInstructionsHold the handles with both hands, stand on the ... side to side.BenefitsRelaxes the muscles of waist, and improves the flexibility and agility of the waist.Quality guarantee:CE, ISO ... handle while using the equipmentWarrantyFrame: 8-10 years.Bearings, bolts and other parts: 1 year. Waist Twister