VELCRO(r) Brand Heavy-Duty Stick On Strips comes in the following: Size: 50 x100mm White. Colour: Black. VELCRO(r) Brand Heavy-Duty Hook Loop Stick On Strips are the quick and easy to use alternative to nails, screws and glues. With extreme holding power, holds weight up to 7kg per 50mm x 100mm piece (adhesive reaches maximum strength after 24 hours). Secures items in seconds, simply peel and stick - no tools required and they are suitable for use indoors and out. Supplied as 2 pre-cut strips allow for a quick and easy application.