Quantity : 4 base （ 2 Big and 2 Small ）for flashlight. Hold Two flashlight, No flashlight included. Universal - Big - Fit 30MM-43MM Diameter flashlight, and Small - Fit 22MM-28MM Diameter flashlight. - hold a variety of flashlight diameters Strong Magnets - up to 5 Lbs . the magnet is very strong, ensuring quality and longevity. The magnets are covered with rubber. No rust. Magnetically attaches to any ferrous metal surface. Allow a light to be conveniently located. Versatile Usage - - For handy hanging next to fridge, oven, BBQ grill, washer/dryer, metal sink, file cabinet, steel doors and shelving, workroom fixtures. in any vehicle, boat ,etc，Works great mount a flashlight on your electric longboard and these do the trick, These mounts worked great to mount my flashlight in your pickup truck! Suitable for both indoor and outdoor use.