Hallowell’s One-Wide Triple-Tier Lockers with Electronic Lock feature electronic locks with four-digit codes that can be programmed for day use or permanent mode. In day use mode codes are determined by temporary users as lockers become available, and in permanent mode codes are pre-assigned to specific lockers. Powered by two AAA batteries that provide in excess of ten thousand uses, the locks are equipped with eight-digit master and sub-master codes for two levels of security. These sturdy lockers are constructed of 16-gauge steel frames and 24-gauge steel body panels. The three roomy openings have double hooks for hanging coats and book bags. Ventilated doors include full-length piano hinges that protect fingers from pinching and keep doors firmly attached to locker frames. This model ships assembled.