Precision drop-in riser adapter designed exclusively for the Dogbone 3.0 system. This insert allows you to securely hold and perfectly level the popular square heavy-base shot glasses (1.96" width × 2.3" height, ~2.2 oz) for fast, repeatable two-sided laser engraving.

No more wobble, tilting, or time-consuming tape/setup. Simply drop this adapter into your Dogbone 3.0 riser and slide the square shot glass in place — it locks in flat and stable every time, making double-sided engraving on small rocks/shot glasses quick and professional.