Risk Stainless Steel Go/No-go Bike 3 in 1 Chain Checker

Brand Name: RISK
Type: Multifunction Tools
model: RL305
Function: Stainless Steel Go / No-go Chain Checker
for: Bicycle shop
Weight: 0.035kg
Material: Stainless Steel
Color: Silver
Features: Instantly advises you when it's time to change the chain