Hollis Reg. Necklace, Adjustable Regulator Accessory / Black Instruments OCEAN REEF has designed a

OCEAN REEF has designed a communication system that is easy to use

Plastic main entry zipper offers improved flexibility over traditional brass zippers and a lower profile design

0 may be programmed to provide no-deco and deco profiles like virtually every computer on the market

Ball size: 1 inch

There is a fee for attending an IE

Hollis Reg. Necklace, Adjustable Regulator Accessory / Black Instruments OCEAN REEF has designed aOverview Hollis' regulator necklace takes a new twist on a tool that technical divers have used for years to keep the backup regulator stowed under the chin. Fully adjustable, the Hollis necklace can be worn by any size diver and adjusted to fall on the chest according to individual diver preference.