OG 3.0 Adapter Ring OG 2.0 our eyecup is built to

our eyecup is built to withstand the rigors of the outdoors

Compatible with all double-barrel binoculars

What's Included • OG Mini Ring/Spacer Combo — A one-piece adapter matched to your binocular's eyepiece diameter

It's the perfect accessory to safeguard your investment

The OG Mini is a digiscoping kit designed specifically for binocular users who want a cleaner

OG 3.0 Adapter Ring OG 2.0 our eyecup is built toRequired Items for a complete system: 1. OG 3. 0 Adapter Ring 2. OG 3. 0 Magnetic Mounting Plate 3. OG 3. 0 Optic Spacer The Adapter Ring: This is the foundation of the On Glass adapter system. The spacer of your choosing will twist lock inside of this adapter. The Magnetic Mounting Plate will slide into one of the slots at the bottom of the adapter in order to properly center your phone camera on your optic.