Magnetic Shaker first and second Bag is equipped with YKK

Bag is equipped with YKK zippers

the Tern TX provides excellent functionality for sport divers

Possibility of silencing ascent rate alarms

Rear release valve with control brought to the front

unlike traditional models

Magnetic Shaker first and second Bag is equipped with YKKMagnetic Shaker The Magnetic Shaker is compact, easy to use, and a must have device when scuba diving. Clip this device onto the B. C. D. so it's handy when it is needed to get the diving buddy's attention. A magnet is located inside on either end of the shaker with a ball bearing in between. Shaking the device moves the ball bearing, creating a loud echo sound underwater. It's a great communication system in a world where words simply won't be heard.