Length:Can be any customized Thickness:1mm, 1.5mm, 2mm, 3mm Feature:High Mechanical Strength Material:Non-toxic, tasteless, food safe level Certificate:CE Size:127*127mm OEM:thickness can be customized sample order:welcome Usage 1:Hard forming sheet for orthodontic retainer use(2mm in common) Usage 2:Soft forming sheet for bleaching tray use Show More