· Compatible boilers: B2F, B2E. · Cylinder: Double movement (vertical type). · Valve model: Slide valve. · No-load operation: 6,000r.· Cylinder volume: 5.4cc. · Hull length: 1,000-1,300. International Buyers - Please Note. Thank you for your understanding. This item is in the category "Toys & Hobbies\Radio Control & Control Line\RC Model Vehicle Parts & Accs\Body Parts & Interior\Boats & Watercraft". The seller is "samurai_collection" and is located in this country: JP. This item can be shipped worldwide.