Made of Marine Grade 316 Stainless Steel and Nylon, very tough and resistant to corrosion. Complete with stainless steel retaining chain, to avoid losing or misplacing . contains a high grade O-ring seal: Suits 1.5(38mm) I.D. hose Cutout hole size: 45mm. Suitable for many applications requiring a deck filler, including: Boats and yacht, Caravans,camper ,Motorhomes,Trucks,Tractors. Easy open screw top, Just turn the tool by hand to unscrew. Size Chart: 9.0x8.0x9.0cm/3.54x3.15x3.54inch Package Includes: 1 Piece Boat Deck Filler 1 Piece Accessories 3 Pieces Screw Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!