Scuba Choice Scuba Diving 3 Panels Wrist Writing Dive Slate with Pencil Velcro arm strap 3 Panel sizes: 5-1/2" x 4-1/4", 3-1/2" x 4-1/4", 3-1/2" x 4-1/4" Allows you to wear it on your wrist. Replaceable pencil with safety leash 2 lead pencils and 3 O-rings included