Crafted for versatility, this square tube insert sleeve serves as a reliable adapter for converting tubing sizes in fitness equipment. Its inner hollow design ensures a snug fit, reducing friction and wear during use. for maintaining stability in exercise machines, it supports efficient movement and enhances overall equipment performance. Features -Color:Black -Material:PP, PA -Size:5.10X5.10X4.10cm/2.00X2.00X1.61in -Stability: engineered for 50 to 40 hollow square tubes, this sleeve ensures a secure fit, enhancing the stability of your fitness equipment -Ease of transport: the lightweight hollow design makes it easy to move, for outdoor fitness setups, allowing for quick and effortless space adjustments -Durable construction: precision crafted to minimize wear and tear, this sleeve extends the life of your fitness equipment, reducing the need for frequent maintenance -Protective cushioning: designed to absorb shocks, this sleeve protects your tubing from damage, ideal for intense workout sessions, maintaining the equipment's condition -Versatile use: compatible with multiple fitness equipment brands, this sleeve simplifies part replacement and adapts quickly to various training requirements, boosting gym efficiency Package list: 8 x Square Tube Insert Sleeve