Description:Brand New and High QualityThis jump Trainer increases muscular balance， vertical and horizontal leaping ability， helping you perform better in any sportIncrease lower body dynamic strength by adding resistance to drills and training workouts.It also improves posture and prevents injuries.Soft latex and rubber materials for comfort&easy&safety useAdjustable belt fits most waist sizesSpecification:Material: Latex+Rubber+FabricColor: Black， BlueLatex tube length: approx. 25.5cmResistance: 70lbsPackage list:2 x ankle straps2 x latex tubes (resistance bands) with nylon outer sleeve.1 x waist belt 1 x BagPlease kindly Note: Items will be repackaged to save your shipping charge & to be environmentally friendly. We guaranty the item will be protected well in buble bags， No retail box!