Periodontal friendly ball attachment for extracoronal and bar constructions. Plastic male for casting-to with the male keeper. To be used with any dental alloy. Housing in TITANAX (Ti-Al-V) for polymerization with the replaceable plastic female in 3 retention levels. Use the 1230 cup burr to finish the male. Total height: 5.55 mm Ø housing: 4 mm