This square tube sleeve insert is an essential component for fitness equipments maintenance. It serves as a reliable tube conversion fitting, allowing for smooth transitions between different tube sizes. The hollow tube liner sleeve is crafted to withstand rigorous use, ensuring your exercise machines remain in top condition for optimal performance. Features -Color:Black -Material:PP, PA -Size: 5.10X5.10X4.10cm/2.00X2.00X1.61in -Enhanced stability: boosts the stability of fitness equipments, ideal for various workout settings -Durable materials: made from sturdy materials, ensuring use -Tailored fitness experience: accommodates different needs, providing a adapted fitness experience -Surface protection: the bushing design minimizes friction, protecting equipments surfaces from scratches and wear -Versatile compatibility: suitable for a range of fitness devices, allowing for flexible combinations and adjustments for diverse training Package list: 4 x hollow sleeve bushings