Product CatalogueSports and OutdoorsWindsurfing OtherBits and PiecesK4 Fins US Box Blanker Back K4Fins K4 Fins US Box Blanker Product ID: 974814 Brand: K4Fins 2024-12-05 From: $14.99 AUD View or buy the Bits and Pieces Windsurfing Other - K4 Fins US Box Blanker from K4Fins to discover other options and shipping details. Description Blanks off US Box when not in use. 130mm top 9 mm wide 25mm deep Back to Windsurfing Other - Bits and Pieces More Bits and Pieces and others in our range K4 Fins Slot Box Box Blanker 90mm Goya Tendon Joint Chinook Delrin Washer Channelled Chinook Tendon Joint Chinook 4.0 mm Spectra Downhaul Rope Streamlined Standard Collar And Pin Ezzy Batten Tension Adjuster Chinook Mast Cup Kit Select Fin Box Adaptor Bic (Trim) Chinook Rubber Universal Joint Kit