Crafted for fitness enthusiasts and gym owners, this square tube insert offers a reliable choice for maintaining gear integrity. Its sliding mechanism allows for easy adjustments, while the hollow design minimizes friction. practical for training machines, it supports transitions and protects inner tubing from damage. Features -Color:Black -Material:PP, PA -Size:5.90X5.90X4.30cm/2.32X2.32X1.69in -Structural integrity: the hollow design enhances the stability of fitness gear, increasing its loadbearing capacity and extending its service life -Adaptable fit: the square tube adapter accommodates various tube sizes, simplifying the assembly process and enhancing efficiency for different fitness gear -Smooth operation: the glide sleeve design reduces friction between moving parts, lowering noise levels and improving the workout experience in home and gym environments -Pressure management: the inner hollow sleeve distributes pressure evenly, preventing tube deformation and ensuring smooth and safe exercise movements -Robust material: made from highstrength materials, it is resistant to wear and impact, making it practical for highintensity training and suitable for both professional athletes and fitness enthusiasts Package list: 6 x Square tube sliding sleeve