IST Retractable Lanyard Underwater Slate with Glow in the Dark Compass

White waterproof slate with mounted glow in the dark compass Attaches to belt or BC D-ring with carabiner-style hook Retractable lanyard offers quick access, automatically stows the slate when not in use Included pencil attached with stretchy, Neon Yellow plastic coil Dimensions: 2.8" x 8" (7cm x 20cm) The IST WR4 Retractable Lanyard Underwater Slate with Glow in the Dark Compass is a practical, two-in-one piece of dive navigation and documentation equipment.  The extra length and included glow-in-the-dark compass with large, easy to read markings make this slate particularly well-suited for underwater terrain mapping and navigation.   The included pencil is attached by a flexible, stretchy, high visibility Neon Yellow plastic coil, and can be replaced when necessary.  Sturdy carabiner-style clip for hooking onto belt or BC.  Retractable lanyard for quick access and automatic stowing when the slate is not in use.   Dimensions: 2.8" x 8" (7cm x 20cm)