... 3mm,5mm 3.Welcome your size 4.Timely delivery Acrylic Storage Boxe:Descriptions:Itemacrylic boxMaterialone grade acrylicMain workmanshipcutting,grinding,polishing, ... are many different sizes, Some are black acrylic base with transparent body,laser engraving image on the back or front ... , each part stick with stong glue all by handwork,correctly aligned pieces,precise size ...