Step 1: The product is equipped with non-marking nails and expansion screws.
Step 2: Use a hammer to fully knock the invisible nails into the wall, taking care not to hit the middle plastic position. Align the card slot on the back of the product with the non-marking nail. You can hang it on top (theoretically, the non-marking nail can bear about 6 kg). It depends on the hardness and material of the wall.