SKILCRAFT® Oversize Push Button Lockout provides a safe and effective method for locking out emergency push buttons. The lockout is made from durable plastic (acrylic) and measures 3.5"H x 5"L x 3.2"W, with a 1 4/5" diameter hole in the center. The lockout accommodates 1 padlock with a maximum shackle diameter of 1/4".