Velcro Sticky-Back Fasteners, 3/4 inch dia. Coins, Black, 200/BX Easy-to-use general-purpose fasteners for everyday use. Adhesive reaches maximum strength after 24 hours. For smooth surfaces. Hook and Loop Fastener Type: Cut Tab; Tape Pad Size: 3/4" Diameter; Color(s): Black; Suggested Use: Mounting Posters/Light Decorations. For smooth surfaces.Velcro