Sipery Floating Shelf Brackets- 4Pcs Invisible Support Shelf Bracket 4 inch Depth Concealed Hidden Shelf Support for Stylish Floating Shelves

Specification Package: 4Pcs Floating Shelf Bracket 4 inch Material: Cold Rolled Steel and Reinforced Plastic Color: Brown Expansion Size: 72x14mm / 2.8x0.55 inch (L*D) Bracket Rod Size: 100x10mm / 10x0.4 inch (L*D) Fit for Shelves Thickness: 20-30mm (approx.) How to Install: 1. Drill hole in the wall according to the mark, then insert the expansion tube end into the wall. 2. Rotate tightly the hexagonal column end and screw it, make the expansion tube to expand the sleeve. Then rotate screw tightly to increase friction, better fixation. With moderate tightening, the better the expansion. 3. Then drill hole on the wooden shelf, insert the other end to the plank hole, fix it to completely. The bearing capacity of the bracket depends on: - Mount on wood or concrete wall - The size and weight of the bracket, and weight distribution on the shelf Sipery Service 1. Customer service: We guarantee your 100% satisfaction! If within 30 days you are not satisfied with our products, please feel free to contact us. We will refund or replace your order to provide a best solution! 2. Search Sipery: If Wanna more Tools & Home Improvement Accessories, just search "Sipery". 3. Knidly Note: Please allow 1-2cm errors due to manual measurement, thank you for your understanding!