Tri-Electronics TB-24GEL Tubes For GT-4000 & GXL-24 Forming Block This kit is Thumler's stock

This kit is Thumler's stock number 114

Made from plastic PVC

and other oval-shaped stones or inserts

Round solitaire ring mountings designed for a 6

The hardened stainless steel head is polished to a mirror finish

Tri-Electronics TB-24GEL Tubes For GT-4000 & GXL-24 Forming Block This kit is Thumler's stockReplacement TB 24GEL pink gel tubes designed for use with the Tri Electronics GT 4000 and GXL 24 gold testing instruments. These gel tubes are a consumable component of the testing system, and keeping a supply on hand ensures uninterrupted testing performance. For the longest service life, store in a cool location heat and age will affect the viscosity of the gel. Features Replacement gel tubes compatible with the Tri Electronics GT 4000 and GXL 24