Three plastic parts, screws, washers, and nuts have been used, one of each. Since the cooler is Φ12mm, it can be fixed using products from other manufacturers. RB gas cooler orange aluminum cooling parts, with package. - Model number: 02009-002 - Part name: RB Gas Cooler - Material: Aluminum - Color: Orange - Included items: Package, screws, gas pressure adjustment parts Thank you for viewing.