The Fischer 42526 is a plastic wall plug that is designed for use in brick and concrete. It is available in a pack of 200, and comes in three different sizes: 5mm, 6mm, and 7mm. The 42526 is made from high-quality plastic that is both durable and weatherproof. It also features locking lugs that prevent the plug from rotating in the drill hole when installing. This makes the 42526 a very secure and reliable fixing. · · · Durable and weatherproof construction · · Locking lugs prevent rotation · · Available in three different sizes · · Suitable for a wide range of applications