You are getting ready to make your first dive of the day, you are fully suited up and are ready to put your mask on to start your dive and your mask strap breaks! Always have a Spare in your Save-a-Dive Kit. This Quality Rubber Three- Point Adjustable Strap fits the Cressi-Sub Full Face Rubber Mask. Don't let a broken mask strap keep you from diving. Strap is covered by a 12 month limited warranty.