Group 1 - Jump rope is a widely popular sport and is included in physical fitness tests for middle and primary school students [1] - The China Consumers Association and the China Sporting Goods Federation have issued consumer tips for selecting compliant and safe jump rope products [1] - Consumers should check product labels for completeness, including product name, model, manufacturer information, and standard numbers (GB/T 19851.20-2007, GB/T 19851.12-2005, or GB/T 45544-2025) [1] Group 2 - When selecting jump ropes, consumers should avoid products with excessive bright or dark colors, which may indicate the use of excessive dyes or plasticizers [1] - It is recommended to smell for any pungent plastic or glue odors, which may indicate the presence of harmful substances exceeding safety limits [1] - The texture of the material should be smooth without burrs, and plastic parts should not be overly soft or sticky, as this may suggest excessive plasticizers [1] Group 3 - For daily practice, basic jump ropes such as bamboo or rubber ropes are recommended due to their lightweight and non-slip handles [2] - For examination purposes, jump ropes that meet school testing standards should be chosen, with adjustable lengths typically set to 1.5 times the user's height [2] - For fitness training, electronic counting jump ropes are suggested, which support timing and segment counting functions [2] Group 4 - Functional testing of jump ropes should include checking the length adjustment mechanism to ensure it locks securely [4] - The grip of the handle should be tested for slip resistance, with features like a frosted coating or anti-slip texture being beneficial [4] - A pull test should be conducted to ensure the jump rope can withstand a force of 50N (approximately 5 kg) without breaking or deforming [4]

Core Insights - The article emphasizes the importance of scientifically selecting compliant and safe jump rope products, as highlighted by the China Consumers Association in collaboration with the China Sporting Goods Federation [1] Group 1: Product Selection Guidelines - Consumers should check product labels for completeness, including product name, model, manufacturer information, and standard compliance numbers (GB/T 19851.20-2007, GB/T 19851.12-2005, or GB/T 45544-2025), and avoid "three-no" products [1] - For products with electronic components, CCC certification is required, and consumers are encouraged to request testing reports to ensure compliance with new national standards regarding harmful substance limits and mechanical performance [1] - Materials should be scrutinized to avoid risky substances, with plastic and metal components needing to meet limits for phthalates (≤0.1%) and heavy metals (e.g., lead ≤600mg/kg) [1] Group 2: Usage Scenarios - For daily practice, basic jump ropes like bamboo or rubber ropes are recommended due to their lightweight and non-slip handles, suitable for long-term training [2] - For examination purposes, jump ropes that meet school testing standards should be selected, with adjustable lengths typically set to 1.5 times the user's height [2] - For fitness training, electronic counting jump ropes are suggested, featuring timing and segment counting functions to aid in training plans [2] Group 3: Functional Testing - The length of the rope should be adjustable, ensuring that the adjustment lock is secure to prevent retraction during use [4] - The handle should be non-slip, with a textured surface to maintain grip even when sweaty [4] - A pull test should be conducted to ensure the rope can withstand a force of 50N (approximately 5 kg) without breaking or deforming [4]