?Feature:
1. Avoid Chain Skipping: The inner tube of can adopt a single speed chain tensioner, which can effectively avoid chain skipping and ensure safe and stable cycling.
2. Adjust Tightness Of Chain: Bike chain adjuster is suitable for folding , single speed and stationary , used to adjust the tightness of the chain.
3. Fine Workmanship: Precise structure, exquisite craftsmanship, attention to detail, an important tool for adjusting chains, equipped with screws for easy .
4. Multiple Applicable Occasion: Light weight, no extra burden on the , easy to store and carry, can be easily put into your bag, suitable for home, repair shop, travel, etc.

5. Aluminum Alloy Material: chain tensioner is made of high quality aluminum alloy material, firm and sturdy, stable and wear resistant, durable for long term use.

?Specification:
Item Type: Chain Tensioner
Material: Aluminum Alloy
Application: Folding , single speed and stationary .
Function: Adjust the tightness of the chain
Size:
Screw: Approx. 24 x 20 x 4mm / 0.9 x 0.8 x 0.2in
Chain Tensioner Accessories: Approx. 23 x 11 x 5mm / 0.9 x 0.4 x 0.2in, 20 x 11 x 11.5mm / 0.8 x 0.4 x 0.5in

?Package List:
2 x Chain Tensioner Accessories
2 x Screw

?Note:
Please allow slight error due to manual measurement. Thanks for your understanding.