Natures beautiful design, the scallop shell has many lines that radiate from a single point. This Scallop design is a good reminder that home may be the starting point for all you life"šÃ„ôs adventures. Cast in solid brass and hand finished, the Scallop Knocker is unmatched in quality and craftsmanship. Surface mounted so there is no visible hardware on the inside, they are available in Premium or Standard size''s in three finishes.