Check the listing for details. Lee 91933 4-PACK Smart Lock Breech Lock Bushings. Condition: New. Listed at 28.81 USD. Smart Lock Bushings 4 pack Smart Lock Bushings 4 pack Smart Lock Breech Lock Bushings 4 pack. New, easy grip splined drive surface allows easy, accurate and fast die installation in your press. No need for lock rings on your dies with these quick-change bushings. Internal o-ring maintains perfect adjustment. Once set, you’ll never lose position.They look so good and work so well, you’ll want them for all your dies MSP Sports is an authorized retailer for LEE Precision products.This item is NEW and has never been used. Fast Insured Shipping and 100% Satisfaction Guaranteed!Any item we sell can be returned for a full refund (for any reason).* WE NEVER CHARGE A RESTOCKING FEE *Backed by the MSP Sports Guarantee. If your item is lost or damaged in transit we will replace your item or refund you 100% including any shipping charges!