A. This jetski cover is made of 420D oxford fabric with 6 layers of nano material coating inside, so the inner layer is extra smooth, soft and resilient. It won't scratch your jet ski. It has ultraviolet-proof (SPF) up to 85+. Double-needle sewing process is applied at the joints to resist 12000 MM water pressure. Compared with some other covers, it shows better performance in tear resistance and UV resistance. B. The Haidou jetski cover features adjustable elastic fixed windproof buckles (located at the front, middle and back), which can help keep the cover tightly fixed to your jet ski even in stormy weather, maintaining it safe, secure and dry. It offers protection against wind, rain, sun and snow, and helps shield your trailer-mounted jet ski during outdoor storage from rain, UV radiation, dust, scratches, tears, bird droppings, fallen leaves, etc. C. This cover is suitable for outdoor parking and transportation, easy to install and clean. It provides protection for your jet ski from dust, debris, rain and other factors. It is thick and breathable, sturdy and durable. The color is black with silver, and the silver part can help reduce the heat of the top instrument and seat. D. Length: suitable for 135-145 inches; applicable models include FX HO, FX Cruiser HO, FX SVHO, FX Cruiser SVHO, FX Limited SVHO, as well as GTX 170, GTX 230, GTX300, RXT -X 300, Wake Pro 230, FishPro Sport 170, FishPro Trophy 170, Explorer Pro 170 and ULTRA 310X, ULTRA 310LX-S, ULTRA 310LX. Storage/Mooring/Trailer: A sturdy, adjustable bungee cord at the bottom ensures a tight fit; the trailer hook opens at the front, and there is a built-in loop with quick release buckle to keep the cover secure when parked or towing. Colour: Silver+Black. Material: Nylon material + PVC coating. Package Contents: 1 x Jet Ski Waterproof Cover. Only the above package content is included, other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.