Thank you for looking. These are FCS G5 tri-fins. Base G5 is the most basic size and is an all-around fin that can flexibly handle waves from small to chest-to-head high. Size: Approx. H12cm, Approx. W11cm *There are scuffs and scratches on the tip of the fin. They do not affect usability. As this is a used item, there may be scratches, dirt, etc., so please refrain from purchasing if you are sensitive about such things. Thank you.