Made of high quality acrylic material,clear,smooth,durable and sturdy,not easy to break. Size: These acrylic circles measure 4"/10cm in diameter,3mm in thickness. Covered with protective coverings which protects them from scratching,and it is easy for you to peel the protective coverings off to reveal a transparent acrylic like picture shows before using. You can draw with an oily pen on it with your favourite color or pattern,and it will be easy for you to wipe them gently with acetone. Can be applied as for key chains,name tags,handmade crafts,gift labels,greeting cards,table numbers,seating cards,gratitude cards,etc. Diameter: 5cm/2inches Thickness: 2mm/0.12in Quantity: 24pcs/set Package includes:24x Acrylic Disks