-- One of the rings has a stop pin the bottom of it for rock solid application
-- With four screws Design, it will hold the scope more securly than a single screw on both sides
-- Scope Rings Type: Medium Profile (14mm),Fit for a .22 rifle or an air rifle using a 3/8" or 11mm dovetail mount
-- Scope rings are for standard riflescopes 25.4mm scope tube
Pack in Lirisy Exclusive design packing box,make it different and special,good gift to your boy friend,father,grandfather.