Promate Barracuda Sharp Tip Titanium Diving Knife (5-inch) Rust Proof Titanium blade and hammer on handle bottom Quick release and adjustable straps Easy disassembling for cleaning and maintenance Requires little or no maintenance Overall Length: 10.5 inch (27 cm), Titanium Blade Length: 5 inch (12.5 cm) Decide where you will wear your dive knife on, such as BCD, gauge console, or leg or wrist, because this may dictate what size you are looking for. If you travel a lot,s<span class="a-text-bold">mall </span>knives are your best bet. Once you know the placement and size range, handle a variety of knives to evaluate <span class="a-text-bold">the g</span>rip in your hand with either y<span class="a-text-bold">our b</span>are hand or gloves on. Release the knife from the sheath and replace it several times to get a feel o<span class="a-text-bold">f h</span>ow easy it is. Choose the best knife based on the features that appeal to you.