Features:1.Adjustable waist belt:cozy, quick drying design, pleasantly soft, removable and washable2.High quality latex tube:with excellent workmanship, abrasion-resistant and durable.3.The stretchy cord:maintains tension during exercise, sports stays in place, and provides safety and comfort.Description:Improves your speed, strength endurance, swimming and pushing power even WITHOUT an expensive counter-swimming system.Specifications:color:red,yellow,blue(optional)type:Adult,kid(optional)size:5*8*3M,6*9*3M,6*10*3M,5*8*4M,6*9*4M,6*10*4M,5*8*2M,6*9*2M,6*10*2M(optional)Package Included:1x elastic rope1x swimming belt1x strapNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow slight dimension difference due to different manual measurement.