Our Birch mushroom button plugs are high quality and a great value (not to mention, made in USA!). Ideal for furniture, cabinets, trim, tables, chairs and more. Our mushroom button top plugs are tapered to fit 1/2" diameter holes on tables, chairs, cabinets, and other DIY woodworking projects. 1/2" Birch Wood Plugs have "Mushroom top", and will fit 1/2" diameter holes and taper in very slightly to the bottom for a snug fit. Simply tap in with a rubber mallet or similar tool. No glue is necessary. They can be sanded and stained. SIZE: .625 Inch Wide X .4 Inch Tall. Shank fits 1/2" holes. Bulk pack of 20 plugs.