The solid oil pipe stopper ball by Baorunjia is designed for use with retractable air hose reels. This adjustable hose bumper ensures the hose remains securely in place, preventing overextension and potential damage. Its robust construction and easy installation make it an essential accessory for maintaining the longevity and efficiency of your hose reel system. Features -Color:Black -Material:Rubber -Size: 7.00X7.00X2.00cm/2.75X2.75X0.79in -Durable construction: made from solid rubber, this hose stopper ensures durability and reliable performance in various industrial applications. -Automatic retraction: the auto retractable design allows for quick and easy hose management, saving time and reducing labor efforts. -Impact protection: the bumper ball design protects the air hose reel from potential damage caused by collisions, extending the lifespan of your equipment. -Versatile compatibility: specifically designed for 1/4 inch air hoses, making it suitable for a wide range of industrial uses. -Precision engineering: meticulously crafted to provide a good fit and optimal performance, ensuring your air hose reel operates smoothly and efficiently Package list: 2pcs tube reel Stopper Ball