<br><b>Brackets Size:</b> 20 x 20 x 15.5 mm / 0.79" x 0.79" x 0.61" (L x W x H) <br><b>Hole Diameter:</b> 4.5 mm/ 0.18". <br><b>Hole Quantity:</b> 2 Holes<br> <br><b>Package Included: </b> <br>12x Corner Braces <br>24x Screws