This resulting wet weight with this Buoyancy Rings is as follows (data valid for freshwater):

Video 18 series:

• 1 Ring: 280gr
• 2 Ring: 60gr

Video 24 series:

• 1 Ring: 370gr
• 2 Ring: 150gr

The rigid material is pressure-resistant to 180 m depth.

NOTE: KELDAN LIGHT NOT INCLUDED