"Parameters" Product Name: Surfboard Accessories, Plug-in Fin Splitter, Base Removable Cail Fin Product brand: none Material: environment-friendly PVC Weight: 100 g Color: black Size: 18.5 * 3.3 * 22 CM 【 note 】 It is generally adhered to both sides of the board surface to assist the use of central large water divider 1. high quality soft PVC material, toughness. 2. Easy installation, teaching process, suitable for all kinds of inflatable SUP surfboard, increase the stability of the surfboard.Improve the steering ability of the surfboard. 3. The water divider of the seat surfboard is glued to the back end of the reverse side of the surfboard with glue 4. The size of the water distributor is 18.5cm *22CM* 3.3cm. 5.It can increase the stability and direction of the surfboard, let you enjoy the fun of surfing!The thrill of extreme sports.