The Wrist Slate offers three, separate writing surfaces via three leaves that flip-up for easy access. An elastic cord snaps the leaves back into place and a cord with sleeve stows the attached solid, carbon stick pencil. The wrist slate fits on the curve of the forearm and can be attached with either the hook and loop strap or two small elastic cords included in the kit. Use them for note-taking, back-up deco schedules, or as a safety communication device. The slate measures (H x W) 4 x 4" (10 x 10cm), and weighs 4.2 oz (119g). Dive Rite Wrist Slate Features Wrist Slate: 3 Separate Writing Surfaces via Three Leaves Leaves Flip-Up for Easy Access Elastic Cord Snaps Leaves Back Into-Place Cord w/Sleeve Stows Attached Solid, Carbon-Stick Pencil Fits-On Curve of Forearm Attachment: Hook & Loop Fastener Strap or 2 Elastic Cords Uses:Note-TakingBack-Up Deco SchedulesSafety Communication Device Dimensions: (H x W) 4 x 4" (10 x 10cm) Weight: 4.2 oz (119g)