Dive Safety Rope: The rope that guides the diver back to the original position. A end is attached to the weight of the diver"s guide rope, and the other end is attached to the diver"s body. Material: The freediving Lanyard is made of TPU high elastic polyurethane, the wristband is made of soft SBR rubber + to fix the belt handle firmly, the connection is made of 1.5mm stainless steel double bearing and 360 rotating design, and the lock is made of zinc alloy material. Breaking force: 24KN. Adjustable: Freediving safety rope fastens to the wrist comfortably with adjustable wristband. Great Accessory: Freediving safety lanyard is suitable for scuba diving, freediving, drifting diving or other underwater sports. Note: It must be turned to open to effectively ensure the safety of diving. Specification: Hardness(Shore) 902 Specific Gravety (g/cm3) 1.20 Resilience (%) 40 Ultimate Elongation (%)>450 Tear Strength(N/mm)>80 Size Chart: Diameter: 5mm/0.20inch; Length: 1m/39.37inch Package Includes: 1Freediving Lanyard Note: Please allow slightly errors due to manual measurement and different monitors.