How do you hang a horizontal wall art with invisible nails?

Invisible nails have 3 very tiny steel nails that nail to the wall without damaging the wall. Outside almost invisible traces, the wall damage is also very small. Suitable for all kinds of walls, for hanging framed photos and wall paintings, etc. Pros, please pay attention to the load-bearing limit of the nail before you hang it! Usage: Use a hammer to gently tap the 3 small nails on the hook into the wall! Warm tips: 1, plastic products can not be used. 2, tile wall, should be hit the nail in the joints, to avoid damage to the tile surface. 3, do not overweight (load-bearing 2KG). 4, fragile, valuables and injuries and dangerous items please do not hang. 5, to choose to nail the strength of the surface, to avoid long time cement surface fall off, wood decay, so that hanging items fall, causing damage. Usage: Step 1: Hook the small nose up, gently nailed to the wall with a hammer. Step 2: Hang can be.