TonePros is proud to introduce the "New Improved G Series" which features new "G Formula" technology. TonePros engineers have completed work on a special proprietary formula based on the original "vintage" Nylon 66 saddle material found in guitars of the late 50's and early 60's. This new material retains the tone of the original Nylon 66 saddles but adds other hi-tech ingredients that provide a new "slippery" surface that prevents string breakage while also providing superior durability, which prevents the wear and breakage problems of earlier Graphite materials.