Product Name : Donuts Chain Tensioner;Material : Metal
Each Size : 48 x 25 x 9mm/ 1.9" x 1" x 0.3"(LxWxH);Thread Dia. : 6mm/ 0.24"
Hole Size : 19 x 10mm/ 0.8" x 0.4"(Outer DiaxInner Dia);Color : Silver Tone
Weight : 25g
Silver Tone Metal Donuts Chain Tensioner.
Good replacement for the old and damaged parts of your bicycle.
Package Content : 2 x Donuts Chain Tensioner
Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

What's in the box
2 x Donuts Chain Tensioner