Our Save-A-Dive Kit is fully equipped with a spare generic Fin Strap to fit most modern fins. Durable Mask Strap that can be used with all masks. Mask strap is a split strap design which helps mask fit securely and comfortably in place. Delrin Plastic Weight Belt Buckle. Heavy-Duty Snorkel Keeper that is extra thick for durability. Mouthpiece and Zip-Tie that fits most regulators and 2 standard and 2 Sherwood O-rings for Yoke Valves. All in a convenient and easy to carry nylon mesh drawstring bag.