AUCH 42Pcs Creative Multi Function Invisible Hardwall Drywall Picture-Hanging Hooks Clock Hanger Non-Trace Wall Picture Hook Frame Wedding Photos Mirror Wall Studs, White(40 Hooks) Easy to use and could apply to a variety of surfaces(Suitable for concrete, cinder block, softstone, brick and hardwood). Composed of durable, long lasting materials, the small hook could load weight 3KG/6.6 lbs. Suitable for hanging keys, umbrella, clothes, photo frame, metope adornment , etc. We have 5 different combos for you, just choose what you want! Easy to install, can provide a non-mark wall surface. Package Contain: Total 42Pcs (40 x Small Photo Frame Seamless Nails; 1 x Clear Storage Case; 1 x Mini gradienter).