When the load is more than 10kg, it is recommended to install more than 2 supports to increase the bearing capacity. Every bracket will need screws x2, anchors x2, washer x2. (All are not included)You need to have a Level, Drill, Electric Screwdriver, Hammer. (You may need a drill press if the shelf is DIY) Drill holes on the wall You should use a level to mark a cross on the wall to make sure you drill the holes in the right place.Install the bracket You can use washers to help the bracket install tightly. Electric screwdriver is highly recommended.Adjustment Slightly adjust the rod and height of bracket.Insert the shelf Just simply put it in, what is more important is to prepare the slot for the bracket. Not only for the rods, but also for hole bracket. Help others learn more about this product by uploading a video!3.9 out of 5 stars Invisible Floating Shelf Brackets, 3" (77mm), Hidden Blind Supports for Concealed Shelves, Pack of 2 Share: Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive. Fields with an asterisk * are required ** 01 02 03 04 05 06 07 08 09 10 11 12 01020304050607080910111213141516171819202122232425262728293031 *Enter the store name where you found this product* Please select province Please select province * 01 02 03 04 05 06 07 08 09 10 11 12 01020304050607080910111213141516171819202122232425262728293031