cooperated with a well-known fitness equipment manufacturer to customize special metal shafts and connectors for yoga wheels. Adopting 304 stainless steel precision turning forming and mirror polishing technology, the surface roughness is controlled at Ra0.1μm, which not only ensures a smooth touch without scratching the outer layer of the yoga wheel, but also improves corrosion resistance. An innovative anti-loosening buckle and anti-slip pattern are designed to bear a load of 150kg, preventing loosening and falling off during use. At the same time, the structure is optimized to achieve lightweight, reducing the weight of a single metal shaft by 25%. This accessory is compatible with various specifications of yoga wheels, helping the partner increase the product qualification rate to 99.8% and sales by 53% year-on-year, becoming a mainstream supporting accessory in the fitness equipment market.