Aquatec WS400 Compact Slate with Pencil. This compact 17.5 cm x 12.5 cm Super Pencil Slate will fit into most BCD Pockets, yet has plenty of room for taking notes, conversing with your dive buddy, or writing down skill performance when training. Whatever your writing needs are this slate can get it done. Super Pencil Slate comes with a Super Pencil, unlike more conventional dive slates the Super Pencil has replaceable lead, so once you use it up you can get a refill for years of continues use. The slate is also equipped with a Corrosion Resistant Locking Gate Clip and Nylon Webbing Loop for easy secure to your equipment and protective pencil tube for storage of the Super Pencil. Dimensions: 17.5 cm x 12.5 cm. Compact: Fits in BCD Pocket. Makes Note Taking or Conversing Easy Underwater. Replaceable Lead Super Pencil. Corrosion Resistant Locking Gate Clip. Durable Plastic Construction. Materials: Plastic, Nylon Webbing.