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这款训练器包括一条腰带和一个用防水布料缝制的阻力伞。根据不同的阻力训练要求，伞型大小也分为四种，边长分别为20cm\30cm\40cm\50cm。
这款训练器包括一条腰带和一个用防水布料缝制的阻力伞。根据不同的阻力训练要求，伞型大小也分为四种，边长分别为20cm\30cm\40cm\50cm。
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 09:44
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