B&M (Generic)Mas screw-in crowns, water-resistant. Products nameVersionshapedimensionsbarrelcolouradditionitem No.crownfor screwingB&M4.50x0.92.50yellowHight 3.50mm832910459crownfor screwingB&M5.00x0.92.50yellowHight 3.50mm832910509crownfor screwingB&M4.50x0.92.50steelHight 3.50mm833910459crownfor screwingB&M5.00x0.92.50steelHight 3.50mm833910509