Features 1、Main Purpose: The wrist writing dive slate can help the communication between the diver and the diving partner, and the underwater situation. 2、Floating Pen: The pen will be suspended in the water and will not fall. When used underwater, it is more convenient for the diver to write. 3、3 Panels Design: Wrist writing slate for technical diving, the arc shape fits well with the back of the hand, three piece design, smaller size, easy to carry. 4、Hang Position: Diving wrist writing slate can be hung on a diving buoyancy vest. The attached pencil is fixed to the writing board by a hose. 5、Good Features: 3 panels wrist writing dive slate can be used repeatedly, can communicate during diving, anti corrosion performance. 6、Underwater Communication Tools: The diving writing board is a tool for underwater communication or swimming pool communication. Item Type: Wrist Writing Dive Slate Material: ABS + Composite Wood Color: As Pictures Shown Weight: Approx. 140g/4.9oz Features: Can Be Used Repeatedly, Can Communicate During Diving, Anti Corrosion Purpose: The writing board can help the communication between the diver and the diving partner, and the underwater situation; the pen belt will be suspended in the water and will not fall. When used underwater, it is more convenient for the diver to write Package List 1 x Wrist Writing Dive Slate 1 x Pencil 4 x O Rings