Made of high quality ABS material, size (LxWxH): 9.6*35, no sharp edges, safe to use.^ Marking nails, spirit level and picture frame ruler with hook for marking position and hanger height.^ The Picture Hanging Tool has a built-in layer that ensures you can visually hang your art where you want, every time. No measurement is required.^ This set of picture hanging tools is perfect for hanging picture, frame, mirror, clock, plate, degree plaque. TV mount, switch sockets on the wall, kitchen and bathroom accessories.^ Vertical and horizontal bubbles built into the layers ensure your images aren't warped. Easy to use, saves time, walls and frustration, hangs a picture for perfect placement in seconds. Can be used for events like wedding, anniversary, birthday party.