This automatic retractable hose reel accessory is designed to make your life easier. With its convenient and quick install design, you can easily store your hose without any hassle. The solid hose reel ball stopper is durable and reliable, ensuring that it will last for years to come. The air hose stopper ball provides stability and safety, while the precision control of the hose reel ensures that you can easily manage your hose.Features-Color:Black-Material:Rubber-Size:6.00X6.00X3.20cm/2.36X2.36X1.26in-Inner hole diameter: 15mm-Note: Suitable for14.5-17.5 mm outer diameter hose.-The stopper can be fixed in the place which you want to stop when the hose reel roll back automatically.-Perfect fit Hoses hold up well, convenient and practical for hoses, securing our hose reels makes them work better.-Air hose stopper ball for added stability and safety. Made of rubber, can be used for a long time.-Precision control mechanism for effortless management of the hose.-Rubber balls can be used to retractable hose reels and replace air hose reel ball plugs. Package list: 1 x hose stopper