Great for interior or exterior use, this 100-piece Plastic Anchors Set is made with durable plastic and can be used in concrete, block, brick, and wallboard. Also ideal for wood and sheet metal screws and fastening mirrors, pictures, curtain brackets and cabinets. Anchors measure approximately 1" long with assorted thicknesses. Comes packaged in a blister pack.,Plastic Anchors Set,Anclas 100Pzas