This bracket is the perfect concealed countertop overhang bracket for countertop support. It is a nonintrusive support while giving your countertop the appearance of floating. Once installed this support bracket will be invisible and protect your countertop from cracking when leaned on. This bracket features countersunk holes to provide a flush installation for added support.Give yourself or your customer the peace of mind they deserve by having the strongest countertop support bracket on the market with the Knee Wall Countertop Support Bracket.This bracket is designed to attach to the top of knee/pony walls to support extended countertop overhangs.How to determine what size bracket:The bracket will be mounted over the top of the knee/pony wall. The knee wall bracket is sized in length tip to tip. Start by measuring from the outer edge of your countertop, including the 4 inches for the knee/pony wall. For example, a 12-inch countertop overhang, plus the 4-inch knee wall gives us 16 inches. Then subtract 3 inches. This subtraction is to stay away from the outer edge of the countertop, which is usually 2-4 inches. This measurement would be 13 inches (12 + 4 "“ 3 = 13), thus you would need to order a 13-inch Knee Wall Countertop Support Bracket. Dimensions: of the Knee Wall Countertop Support Bracket:Length "“ [Select your chosen length when ordering bracket]Width "“ 2 1/2 inchesThickness "“ 1/2 inchCountersunk Hole Diameter "“ 1/4 inch