Thorough Testing: Rigorously examined to suit various 2 cylinder 3B2 series marine engines, providing stable sealing function Sturdy Build: Made from top flexible rubber, retaining firmness and pliability across various environments for extended service Efficient: Effectively prevents and debris intrusion, preserving engine integrity and functionality Easy Assembly: Simple structure allows quick assembly without tools, streamlining upkeep tasks Compatibility: Designed specifically for Otsuka 2 cylinder marine units ( 3B2 series), fits 6HP, 8HP, and 9.8HP top covers to secure proper closure, Manufacturer: FROMCEO