Shimano Altus Crankset with Black Arms and Chainguard, Hyperdrive. Dual SIS Index. 42/32/22 Teeth SG-X Chainrings. 175mm Crankarm Length. Square Drive Taper (NOT SPLINED or ISIS). Suitable with 7/8 Speed setups. Product code: AFCM311E888CL. Weight : 700 grams. You get both arms, all 3 rings and bolts to attach. Picture of actual Product.