This hose reel accessory is perfect for those who want a reliable and durable solution for their hose storage needs. The air hose stopper ball provides stability and safety, and the precision control of the hose reel stopper ball ensures that you can easily manage your hose. Features -Color:Black -Material:Rubber -Size: 7.00X7.00X3.20cm/2.75X2.75X1.26in -Inner hole diameter: 15mm -Note: Suitable for 14.5-17.5mm outer diameter hose. -The stopper can be positioned exactly where you want it to halt when the hose reel retracts automatically. -Perfectly fits hoses, making them more convenient and practical, while ensuring our hose reels function more efficiently. -Air hose stopper ball provides added stability and safety. Made of durable rubber, it is designed for long-term use. -Precision control mechanism allows for effortless hose management. -Rubber balls are suitable for retractable hose reels and can replace air hose reel ball plugs. Package list: 1 x hose stopper