Quick Look: 1.Material: Direct Thermal Paper(Japanese Prince Surface Material). 2.Glue: German BASF Waterbase glue,hot melt glue or removable glue. 3.Liner: White or blue glassine paper,yellow paper,kraft paper,etc. 4.Core size: 2.6cm,4.0cm or 7.6cm(1.0",1.5" or 3.0"). 5.Color: CMYK,Pantone color ,full colors. 6.Shape: Round, square or as your request. More Information: