Sturdy and Durable: The stair railing bracket are made of zinc alloy with smooth and rounded surface, waterproof, rustproof and corrosion-resistant Weight Capacity: Each handrail brackets for indoor stairs can support up to 200 pounds. Attention: Maximum distance between brackets not to exceed 48 in Easy to Install: Stair handrail Bracket installation only requires measuring, drilling and securing the stair railing to a wall, stud or other structurally sound surface. (Do not over tighten screws or they may break) Application Scenario: Stair banister brackets is suitable for home decoration, stair railings, mall fence handrails, corridors, building handrails. HOME MASTER HARDWARE 3" Stair Handrail Bracket, 3 Pack Hand Rail Brackets for Stairs Light-Duty, Stair Railing Bracket, Banister Brackets for Indoor Stairs with Screws, Bright Brass Finish, HOME MASTER HARDWARE