Designed for someone who wants a swim, to athletes who want a training work out. Suitable for all adults and children who want strength training. Waist belt is wrapped with neoprene, which brings you comfort. Turns a home pool into an professional sized . One loop is for installation. So you can hang the belt to any pole around the swim pool. - Great way to improve all swimming strokes and general fitness. The swim sports swim trainer is easy to use, help improve any swim stroke and tone your whole body quickly. Colour:yellow+black Material:Diving material + Oxford cloth Size:B: 40cm Package Contents: 1 x Swim Resistance Belt Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.