One of the most important items to remember to include in your save-a-dive-kit is a spare mask strap. 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. Don't let a broken strap ruin your day of diving. Keep one or two spare straps in your dive bag the dive you save may be your own. This TUSA silicone rubber mask strap is a universal design and will fit a large variety of masks out there. Mask strap is wide split strap design with extended rubber tabs on each end to secure strap in buckle mechanism for positive retention. Strap is available in black or clear, Easy to install, don't let a bad mask strap be the causes of an aborted dive, always carry a spare!