Using the same mounting system as the Works Roll-Off Film System, the Works Tear-off System also has a number of advancements over conventional tear-offs. Factory installed pins result in better tear-off performance and eliminate any variance because of faulty pin installation. For micro-adjustment of tear-off tension, one of the pins is mounted off-center allowing for a slight increase or decrease in tension on the tear-off by a simple twist of the pin. Works Systems really do work. For use with WORKS film system, mounts directly to WORKS film canisters. Fits Hustle and Tyrant goggles. Includes strap clip. Comes in a 10 pack.