DimensionsSquare tube end cap size is 30x30mm, black, perfect for Stainless steel Tubes, furniture, shelves, machinery and equipment.MaterialMade of high quality PE, our square caps are less susceptible to damage and deformation. The high-quality plastic inner caps for square tubes also have a long service life due to their abrasion resistance. Multifunctionality:The plastic square caps have a non-slip function, which protects the wear carpets and floors. In addition, it reduces the noise generated by furniture and pipes when moving them. Easy to install:Our square pipe plugs are easy to install, at the same time, fit directly without have to worry about them or need adhesives to put them on. Wide ApplicationThe black square tube end caps wide range of uses for chairs, bench legs, sofas, bookshelves, cabinet table legs, bar stool legs, and ect. Dimensions: 30x30mm Package includes:30 x Yeuried Plastic Square Caps