bike reflectors for daytime visibility-Venzo Sealed Bearing compatible with Shimano Sram 11 Speed Bike Rear Derailleur Pulley Set

Venzo Sealed Bearing Shimano Sram 11 Speed Derailleur Pulley Set

SPEC:
Material: Alloy 7075
Sealed Bearing
Speed: 11 Speed
Derailleur Compatibility: Shimano, SRAM
Package includes 2 pulleys
Weight: 50 grams