Shearwater Perdix/Petrel Screen Protector Cover Black Mask Divers Central pocket allows you to

Central pocket allows you to place the weight you need in an ideal position relative to your center of gravity

and another post fits into the snorkel mouthpiece

4 cm) Buoyancy (Light with Handmount) 11 oz (312 g) negative in fresh water Material CNC machined aluminum body with hard type III black anodizing Depth Rating 500 ft (152 m) Max Output 2400 lumens Beam Angle 4° LED Luminus SFT-40 Reflector Fixed focus

The excellent stretch properties of the Factor 2 material provides a comfortable and snug fit for most hand sizes

Shearwater Perdix/Petrel Screen Protector Cover Black Mask Divers Central pocket allows you toThis screen protector is a peel and stick clear display protection film that is die cut to fit the Perdix and Petrel dive computers.