I have the cutterpillar light. One thing about the glass mat is that the gridded lines are a nuisance for me. I ordered the clear glass mat for it. I soon found out I needed two, one for tracing and one for cutting as cut marks show up under the light. The rotary cutter leaves cut marks that show up on the mat under the light . I use mine for paper piecing more then for tracing
https://www.cutterpillar.com/tempered-glass-add-on Gridless replacement mat. The gridless is less expensive than the gridded one .