These BD spurs are finally available in Brass plating to match your other Brass plated hardware. Mounts with 3 holes in a triangle pattern. Heavy duty style used on some Pearl brand drums. This model's left and right spurs are interchangable with each other( both sides are the exact same part) . This model simply has a larger tip ( foot) than our similar economy model. Look at model 5225 for smaller 16 and 18 inch kick drums.