Specification: Swim Trainer Tensile Strength: Elastic Rope Swim Belt Strap Dimensions: 6X10X4M Material: Nylon Latex Hose. Latex Rope Length: About 4 Meters Black Belt Length: About 1.2 Meters Adjustment Range Of The Band Is About 55Cm To 105Cm. Features: 1. The Bungee Cord Is Attached To The Edge Of The Pool With The Black Ribbon. The Swimmer Uses The Elasticity And Resistance Of The Bungee Cord To Train. 2. Only Suitable For Swimming Training Or General Practice. 3. The Swim Leash Is Designed To Keep You In Place While Swimming, Exercising Or Exercising And Is Designed To Provide Safety And Comfort. 4. The Stretch Cord Maintains Tension During Exercise. 5. You Can Swim In Small Pools Or In Situations With Limited Space. 6. The Adjustable Nylon Strap Is Tied Around The Waist And The Other End Of The Stretch Line Is Tied To A Fixed Point On The Edge Of The Pool. 7. The Leash Creates A Stationary Position In Which The Swimmer Can Develop Endurance. Package content: 1 X Bungee Cord. 1 X Swim Belt. 1 X Strap. Note: 1. Due to different measurement methods, please allow a measurement error of 2-3cm. Thanks for your support. 2.Due to the problem of shooting tools and light, please allow the color difference between the picture and the product. thanks for your understanding. 3. Thanks for your support, Wish you a wonderful online shopping