Photo 1 of 4 PCS 5" Heavy Duty Steel Corner Brace Black Brackets, L 90 Degree Countertop Support Fireplace Mantel Brackets DIY L Shelf Connector, Width 1-1/2", Steel Thick 5/16"(7.8mm), Max Load 400lbs

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Photo 1 of 4 PCS 5" Heavy Duty Steel Corner Brace Black Brackets, L 90 Degree Countertop Support Fireplace Mantel Brackets DIY L Shelf Connector, Width 1-1/2", Steel Thick 5/16"(7.8mm), Max Load 400lbsPhoto 2 of 4 PCS 5" Heavy Duty Steel Corner Brace Black Brackets, L 90 Degree Countertop Support Fireplace Mantel Brackets DIY L Shelf Connector, Width 1-1/2", Steel Thick 5/16"(7.8mm), Max Load 400lbs