Scubapro Underwater Dive Slate Sturdy, lightweight, phosphorescent plastic underwater writing slate for communication in any circumstances, even in low light conditions. Scubapro\'s handy and compact slate includes a phosphoric pen and snap hook. Features: Sturdy 3mm thick phosphorescent, charge with torch to activate Allows low light Reading and Writing Compact plastic underwater writing slate. Perfect for note taking while diving in low-light conditions. This fluorescent slate makes it easy to make notes while at depth for efficient underwater communication. A snap hook is provided for attaching to a BC. Includes a pencil on a coil lanyard. Dimensions: 130x150mm  /  5.12x5.90in Thickness: 3mm  /  0.12in