【Great value combination & easy to install】Accessories: 6 x brackets, 18 x short screws, 18 hard wall anchors. (Wooden board not included).【Size 】 The brackets are made of 1/5 inch thick solid cast iron, painted in matte black, with high quality standard, not easy to be broken. 6 inch, 8 inch, 10 inch, 12 inch shelf bracket size for your shelf choice. Heavy duty shelf brackets support 100-180lbs/pair..【90°&Hidden Design】Hidden brackets can be used up and down. And the bracket is only 1.6 inches high, if you have 1.6 inches thick boards, you can hide the shelf completely, providing you with a neater look..【Using Scenario】Hidden bracket is suitable for home, living room, kitchen or bathroom, indoor or outdoor, can be used for bookshelf, wall shelf storage, garage shelf heavy duty..【Customer Service】We are committed to providing all consumers with the absolute best price and value for the full line of shelf brackets. Please feel free to contact us once there is any problem with the product. We will all answer your questions within 24 hours.