The Narrow Madlocker bike locker provides the same high level of bicycle security and protection while taking up less space than the original Madlocker. It's constructed of steel, making these metal bike lockers resistance to weather, vandalism, and theft for years. The locker is ideal for indoor or outdoor bike storage. Narrow Madlockers can park one bike per unit, and with a rectangular shape, these bicycle lockers are designed to be banked in a row and be stackable as well. It's also easy to add units, allowing you to expand with your needs. Choose from 16 standard powder coat color finishes, or a custom color option. Select from padlock/u-lock handles or pop-out T-handles with key locks, depending on your bike parking security needs. Perforated doors and sides available in standard designs, with the option of adding locker numbers. Ask about custom design options.