Secure heavy items without nails or screws with VELCRO® Brand Heavy Duty Coins.These black, industrial strength hook and loop coins can hold up to 2kg per 45mm coin and are ideal for DIY projects where superior holding power is required.Use them indoors and outdoors on a wide range of surfaces including wood, glass, metal, plastic, brick and painted drywall.A great alternative to nails, screws and glues in a variety of home DIY tasks, such as fixing a smoke alarm to the ceiling without drilling.