BSA STS Tactical Adjustable-Height Rings, Steel, 5/8" Weaver-Style: * Fit most 5/8" Weaver-style or picatinny type mounts * Includes 2 adjustable aluminum rings and 2 pairs of adjustment blocks for low, medium and high mount settings * Front rifle scope also has accessory mount for laser sight, weapon light or other accessory * Dimensions: 5.7"L x 1.8"W x 6.4"H * Model# STSTRS