The Sobrante ENG/BW Clapper Board is the same as the industry standard slate (W/BW), but features a long- lasting Engraved Slate Board. The acrylic board is rounded on all edges for safe handling, and has engraved markings for a long-lasting print, whatever the situation. White acrylic board uses a dry-erase marker for notations. The 25mm wide sticks are painted in wrap-around Black and White stripes. The hinge bracket is tension-adjustable and there are magnets in the tips of the sticks to ensure a definite close. The standard size slate is designed to fit in all camera assistant front-boxes.