Available in 1 inch only
Low - 0.350 inches..... High - 0.600 inches
Height of Rings as measured from the contact point at the base to the bottom of the ring cradle
These rings work with these steel bases:
220000 - TC Classic Rimfire
252541 - Remington Model 541
220707 - Ruger 10/22
252731 - Browning SA 22 Cantilever Steel Base