Alien Large Rudder. Model: Single large rudder + screws & washers. Weight: 260g/pc. Color: Black.
eBay
3" Black US Box Center River & Surf SUP Fin With Screws Safety Flex Soft for SUP Longboard airSUP
Aliexpress UK
Standard longboard fin box compatible. 1 Surf Fin With Screw. River running. Color:black,yellow,green. 1 The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
6Pcs SUP Fin Insert and Surfboard Base Pin Holder Water Sports
Aliexpress UK
【Wide Application】This central fin is not only suitable for surfboards, but also can be installed on kayaks, canoes and pedal boats. The operation is very simple. Stick the fin base of the surfboard to the rear end of the surfboard, and then insert the fin into the base.
eBay
7/8/9/10 Inch Surf Fin Honeycomb Fiberglass SUP Board Fin For Surfboard Longboard Surfing Water Sport Accessories
Aliexpress UK
Suitable for longboard / surfboard / stand up paddle board. Suitable for longboard / surfboard / stand up paddle board. Slide and lock fin box system, removable center fin for inflatable paddle boards.
eBay
6.5/8/9.5/10 inch Surf Fin SUP Single Center Fin Nylon Long Board Surf Board Paddle Board With Fin Screw Surfing Accessories
Aliexpress UK
It can effectively increase the stability and handling of the surfboard. Unique curved streamline design, suitable for surfboards and canoes.
eBay
2 Pcs G5 Surfboard Fins SUP Accessory Surf Fin Paddle Board Fin
Aliexpress UK
Seago Removeable Fin for Paddleboard / SUP - Black. iSUP skeg / fin - fits most types of inflatable paddle board. This fin fits our windward paddleboard, but will fit most types of board that have a fin that slides into a holder.
eBay
380W 600W Electric Fin Stand Up Paddle Board Push Motor Electric Power Fin SUP Surf Kayak POWER FIN Underwater motor
Aliexpress UK
1 Fin Lock Screws. Anti-rust: Stainless steel will in fresh or salt water. Material:Stainless steel. 1 The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Kedean Electric Motor Underwater Thruster included Battery Stand Up Paddle Fishing Board Push Motor Fin SUP Surf Kayak POWER FIN
Aliexpress UK
Standard longboard fin box compatible. 1 Surf Fin With Screw. Highly flexible. Color:black,yellow,green. 1 The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
4 Inch Slide-in Fin SUP Accessories Surf Water Wave Fin Stablizer Stand Up Paddle Board Surfboard Side Fin
Aliexpress UK