Description: Material: This swimming training resistance belt is made of elastic rubber, which is wear resistant, durable and not easy to break. Adjustable: This swim safety rope is elastic enough which you can adjust the size according to your training needs. Practicing: By using the swimming train aid you can exercise the strength of swimming and patience under the water. Fit occasions: The swim practicing accessory can be used in many occasions such as indoor, outdoor and professional swimming pools. After-sales Service: If there is any problem with our products, please contact us first, we will provide you with solution in the fastest time. So why not give it a try? Specification: Color: Black, blue, yellow. Material: Elastic rubber, cloth. Elastic rope length: 4 meters; 3 meters Black belt length: Approx. 1.2m/3.93ft, adjustment range: Approx. 55-105cm/21.65-41.33inch. Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. 1 Piece Elastic Rope(with 1 Piece Swimming Band, 1 Piece Strap, 1 Piece Mesh Bag).