ITEM NAME:Universal 3Pcs Grub Screws + Key For Surfboard Replacement Accessories img *{margin:0;padding:0;.1 Set (1Piece Surf Fin Key + 3Pieces Fin Screws). Compact size (L x W x H)- Approx. 5 x 3 x 1cm (key); screws- 13mm, easy for you to carry. Surfing set including 1 Fin Key fit for Futures fin system and 3 fin screws.