Versatile compatibility: Square Tube Inserts Sleeve Converter fits most fitness equipment and strength training setups. It converts inner square tubes from 50x50 mm to 45x45 mm (2.0x2.0 in to 1.8x1.8 in), delivering a secure and adaptable fit for home or commercial gyms with smooth, tool integration. Noise reduction and vibration control: Made from durable plastic, this sleeve insert reduces direct metaltometal contact and absorbs impacts. The result is a quieter, more stable workout environment with less vibration and wear on your gear. Easy installation and secure fit: Simply insert the converter into the square tube for a tight, tool setup that prevents slipping during heavy or dynamic movements, providing safety and reliability without complicated steps. Durable, longlasting material: Constructed from wear and impactresistant plastic, this insert maintains its shape under stress, helping extend the life of your equipment and delivering consistent performance over time. Practical use scenarios: Home gym upgrade: convert existing 50x50 mm tubes on racks or benches to 45x45 mm to accept compatible attachments without replacing equipment. Commercial gym adaptation: quickly bridge brand differences in squaretube sizes, enabling flexible use of multiple components in one space. Cable and plateloaded systems: enable secure connections between components with differing squaretube sizes, reducing noise and wear during frequent use.