Brief Introduction‎:‎ Are you ready to go suburb with your friends by bike to relax yourself‎?‎ Then your need this excellent Kactus Aluminium Alloy 11T Jockey Wheel Rear Derailleur Pulley‎.‎ Ultra‎-light and flexible design makes your cycling more relaxed and interesting‎.‎ Exquisite AL7075 CNC treatment technology and bright colours‎,‎ I am sure it is what you want‎.‎ Enjoy your bike trip without restraint‎!‎ Main Features‎:‎ Practical Kactus Wheel Rear Derailleur Pulley Anti rust and corrosion resistant anodized Suitable for upper or lower pulley Compatible with Shimano and SRAM Made of AL7075 CNC alumium alloy Inner diameter is 5mm or 6mm   Model Number‎:‎ A ‎- 04 Type‎:‎ Jockey wheel rear derailleur pulley Material‎:‎ Aluminum alloy Suitable for ‎:‎ Bike Color‎:‎ Blue‎,‎ Gold‎,‎ Silver‎,‎ Black‎,‎ Red Size‎(‎inch‎)‎‎:‎ 11T   Package weight‎:‎ 0.094 kg Product size ‎(‎L x W x H‎)‎ ‎:‎ 4.2 x 4.2 x 0.5 cm / 1.65 x 1.65 x 0.20 inches Package size ‎(‎L x W x H‎)‎ ‎:‎ 6 x 6 x 1.5 cm / 2.36 x 2.36 x 0.59 inches Package Contents‎:‎ 1 x Kactus Aluminium Jockey Wheel Rear Derailleur Pulley