This is the Oceanic Snorkel Keeper Lock Kit System It Features: Convenient way to quickly attach or remove a snorkel from the mask strap Standard with the Pocket Snorkel May be added to any Oceanic Snorkel Snorkel attachment and removal made easy. Oceanic&';s patented Snorkel Lock utilizes an industrial strength hook and loop" fastener that keeps your snorkel securely in place, yet is easily detached."