CHAIR INSIDE PLUG 20X30 MM CHAIR PLUG-20X30 Inner Outer Plastic Plug-Square-Rectangle-Round Interior Exterior Plastic plugs are a plastic-based product used on the bases of machinery and furniture products. The inner plastic plug is a product that has an internal grip feature so that it fits into the space inside the square and rectangular feet. Internal plastic plugs prevent the feet on which it is attached to provide a more elegant appearance and to prevent damage to the surfaces it comes into contact with. Inner Outer Plastic plugs are produced in square and rectangular shapes, in certain sizes and in desired colors. Profile Internal External Plastic plugs are parts produced to be mounted on box profiles. Unlike the ball joint upper parts, they do not have nuts under which a foot can be attached and they are covered. Thanks to the grooves and serrations on them, they are prevented from easily passing through the profile. Rectangular inner plug is frequently used in furniture made of profiles and pipes, storage shelves and display shelves.