Heavy-duty 3-inch corner brackets designed to securely lock your rink board corners. Industrial Strength Since 1992: Reinforced Corners: Provides critical support at the highest-stress points where sideboards meet endboards. Ice-Pressure Rated: Engineered to keep your rink perfectly square against the massive weight of water and expanding ice. Joint Integrity: Prevents joints from pulling apart, ensuring a safe and durable frame for the entire season. The corners are the highest-stress points of any rink frame. Our 3-inch L Brackets provide the industrial strength needed for a professional build. Sold in packs of eight, these brackets are the reliable choice for maintaining a square, secure rink structure in any backyard or commercial setup.