BAZHOU Bleed Spacer- Brake Bleed Spacer Mini Plastic Hydraulic Disc Brake Bleed Spacer Block Aid Tool for Hydraulic Brake [Prevent Mineral Oil from Hitting Pads]: This brake bleed spacer is mainly to help you prevent mineral oil from hitting pads, so that it can be used as a bleed brake pad [Fixed Piston]: Insert this bleed block spacer, which can fix the piston in its position and prevent getting the air out of the lever [Save time]: This bicycle disc brake bleeding is easy to use and can effectively save your time, which can give you spend more time on riding [Rugged and durable]: This disc brake bleeding kit for mountain bike is made of high-quality and lightweight plastic, which is very durable and a must-have tool for bike lovers color: red Size: Fits all kinds of hydraulic disc brakes Quantity: 1pc 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.