The Master Lock No. 1500LH Combination Padlock delivers advanced security with its patented BlockGuard® Anti-Shim Technology, a hardened steel shackle, and a robust, double-reinforced stainless steel body. Designed for lockers with a padlock eye of at least 5/16in (8mm) in diameter, this padlock ensures reliability and ease of use. With a 3-number dialing system and an automatic scrambling feature, it combines convenience with enhanced protection.