Premium Quality: Crafted with durable Thermoplastic Rubber and Low-density polyethylene for long-lasting performance Versatile Sizing: Fits a variety of hole sizes, from 0.492 to 0.590 inches or 12.50 to 14.00mm in diameter Easy Installation & Removal: Snaps into place and can be deliberately removed when needed Wide Range of Applications: Ideal for car bodies, tanks, appliances, and machinery Temperature Resistant: Withstands temperatures ranging from -94F to 175F (-70C to 79C) Button Plugs with Recessed-Type Heads Button plugs have recessed type heads and can be used for plugging holes in equipment made of sheet metal such as auto bodies, tanks, refrigeration units, etc. These plugs can be snapped into holes easily and are held in place by a bead until deliberately removed. Material: Low-density polyethylene Service Temperature: -94 - 175° F (-70 - 79° C) Standard Color: Black