2pcs Bike Chain Adjusters Tensioner Fastener Bolt for Bike Bicycles Chain Adjusters

Features -Color:Black -Material:Metal -Size:4.50X1.50X0.80cm/1.77X0.59X0.31in -Keeping chain slack from falling and improve driving safety. Suitable for most foldable bike. -Made of reliable material, it is durable and wear resistant for long-term use. -The Chain Tensioner adjuster has mini appearance, with durable material. Convenient to use, easy to handle. -Small size, lightweight, easy to carry. Saving the hassle of manually adjusting the chain. -Bike chain adjuster tensioner fastener bolt for bike tool. sturdy and durable.   Keeping chain slack from falling and improve driving safety Suitable for most foldable bike |Made of reliable material, it is durable and wear resistant for long-term use |The Chain Tensioner adjuster has mini appearance, with durable material Convenient to use, easy to handle