Specification BrandBIKIGHT MaterialAluminumPlasticsColorBlackTypeLeft Shifter Right Shifter 1 pair Left Right Shifter MountLeft 3 Speed Right 8 Speed 2050mm stainless inner1800mm stainless innerSizeL 6 2 x W 4 7 x H 4 5 inches 1cm 0 39Inches Compatible Compatible with most mountain hybrid bikes with flat handle bars Diametmer 22 2mm For Alivio Acera Altus derailleur Features Right shifter is a trigger type 7 speed shifter with one lever for down shift and a thumb button for up shift Left shifter is a friction ratcheting thumb lever for triple cranksets For 7 speed indexed SIS shifting Optical gear display for convenient verification of gear positionIt works perfectly for optimum performance and maximum safety and longevity Package Included 1x 1pc Shifter Note 1 Please allow 1 3cm error due to manual measurement Please make sure you do not mind before you bid 2 The colors may have different as the difference display please understand