The Cressi safety lanyard is designed to be used as a guide during freediving. Safety lanyards must be worn during freediving courses. The Cressi safety carabiner is made of stainless steel. The D-ring is made of durable steel. The flexible and durable cord is surrounded by a transparent spine that protects it from abrasion. Our comfortable neoprene strap can be worn on the wrist or ankle. The neoprene cuff has a quick-release tab to release the cuff.