4 in x 3 in (2.54 cm x 1.52 cm) clear. Holds 10 lb (4.5 kg). Locks when wet or dirty. 1000 closures. 3M adhesive technology. Indoor/outdoor. Ideal for Most Surfaces: Finishes & painted surfaces. Metals. Acrylic & hard plastics. Painted concrete. Other hard & smooth surfaces. To Hold: 6 lb; Use: 1 set. www.mounting.scotchbrand.com. Questions or comments? Call toll-free 1-800-3M-HELPS, In Canada, call 1 800 364-3577. Made in USA with globally sourced materials.