Great for use with home decor, small electronics, office and more, these handy Scotch Multi-Purpose Fasteners hold securely with permanent adhesive. For indoor and outdoor use. Use four dots for each pound of weight. Fasteners can be used on most painted, varnished or otherwise sealed surfaces: drywall, brick, wood, metal or concrete,. Also can be used on bare metal, glass and many plastic surfaces. Includes 16 sets of 5/8" dots. Comes packaged in a blister pack.