Sliver Practical Fixed Gear Bike Chain Tensioner Adjuster Single Speed Track Bicycle Accessories

Label:Yes Material: Steel Color: Silver Item: Bike Chain Tensioners Size: 5.2cmx 2.0cm(2.05''x 0.79'') Quantity: 2Pcs

Features: 100% new and high quality This is great because it can prevent chain slack on BMX, children bikes and any single speed bike Used to prevent the rear wheel from slipping forward under pressure For track, BMX, and fixie bikes with rear entry drop outs Package Included: 2Pcs x Chain Tensioners