Size & Package--About 6 (150mm) in length, 3.9 (100mm) in width, 0.4mm in thickness; 30 sheets packed; acrylic sheets of standard size and large quantity are enough for your daily using and crafting needs. Premium Quality--The acrylic panels of 0.4mm thickness is more flexible than glass sheets of standard thickness, which makes our plastic sheets protect your precious photos effectively but not break easily. Fingerprint Note--There maybe some fingerprints left on the surface of the acrylic sheet when workers producing them, and this cannot be completely avoided, just wipe it with wet towel. Protective Films--Each plastic sheet is covered with protective films on both sides to prevent damage or scratches. Please peel them off before using the photo frame replacements. Wide Application--These acrylic sheets can be used for a range of artistic and professional projects, such as photo frame glass replacement, art protector, plastic canvas, laser engraved signage, tabletop protector, and more.