High quality 13mm blanking plugs. Made from UV stable plastic. Used to seal holes in the supply pipe. Also called goof plugs! These little plugs are used if you have made a hole in the wrong place, or if you need to fill a hole when you change a layout. Pack of 10. Hozelock was founded in 1959 & since then has been dedicated to the manufacture of high quality garden products for customers all over the world.