If you're looking for an economical dive knife then the Ocean Pro Black Widow just might fit the bill. The Ocean Pro Black Widow is made from 304 grade stainless steel with a 5' (14 cm) pointed tip blade. The knife blade is a double edge serrated style with a wide hilt. The knife has a low profile design impact resistant handle that is ribbed for a positive grip and has an integrated metal rim. The ocean pro black widow knife comes with a quick-release locking noncorrosive plastic sheath with adjustable straps for mounting on the diver's leg or gear.