1. Using high-quality white acrylic organic material (3MM thick), the front is printed on the back and the back is white without words; 2. The colored wooden boards have built-in magnets, which are more professional; 3. Size (including board): 30cm x 25cm; Organic (acrylic) material and non-wood production, easy to write on or clean. Computer engraving, printing is not lost. Cladding slats, special design, powerful, can avoid cracking. It can record filmmaking, director, scene, shoot, roll and date. Packing list: 1* movie clapper We only sell movie clappers, not other items in pictures. Due to differences in different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement, please allow slight size errors.