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它包括一条腰带和一条弹力绳(天然乳胶)，弹力绳内穿有一条尼龙保护绳，防止弹力绳断裂，起保护作用。弹力绳长6米，最大拉长为25米，是标准25米泳池使用。使用时，教练在岸边握住一端（有保护套），根据训练要求加阻力调整运动员的负荷。这款有四种拉力标准，分别为轻（拉力绳内径为8mm，外径10mm，绿色）、中（拉力绳内径为8mm，外径11mm，黄色）、重（拉力绳内径为8mm，外径12mm，红色）、特重 （拉力绳内径为8mm，外径13mm，蓝色）。
It includes a belt and an elastic rope (made of natural latex), with a nylon protective rope embedded inside the elastic rope to prevent breakage and provide protection. The elastic rope is 6 meters long, with a maximum stretch of 25 meters, suitable for standard 25-meter swimming pools. During use, the coach holds one end (with a protective sleeve) on the shore and adjusts the athlete's load by increasing resistance based on training requirements. This product comes in four resistance standards: light (inner diameter 8mm, outer diameter 10mm, green), medium (inner diameter 8mm, outer diameter 11mm, yellow), heavy (inner diameter 8mm, outer diameter 12mm, red), and extra heavy (inner diameter 8mm, outer diameter 13mm, blue).
更新时间：2025-12-30 13:40
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