Floating waist:Waterproof, High buoyancy, Lightweight, Easy-to-wash and Safe. 1.Model No.:S-207 2.Suitable for training, helping and pose rectification for kids swimmers. 3.It is convenient for carry. 4.Size:59.5*24*3.8cm 64*26*3.8cm 66.5*28*3.8cm 76*29*3.8cm Floating waist,swimming waist,aquatic item,eva,eva foam