These VELCRO® Brand Hook and Loop Squares are 25mm (x 24 Sets). This pack is ideal for keeping items tidy around the home or office. Keep lightweight items tidy and secure. . 25x25mm . 750g . Easy to use alternative to nails and screws . Adhesive sets in 10 minutes for light items . The adhesive reaches maximum strength after 24 hours . Pack of 24 To use, clean and dry both surfaces. Peel backing paper and press firmly to surfaces. Allow 10 minutes to set. The VELCRO® Brand Hook and Loop Squares are ideal for use in the home or office.