The PADI Dive Roster Slate covers everything an instructor needs to write down during an Open Water Training Dive Features of this slate include: Slate is set up to allow the instructor to include pertinent details of their dives Some of the information that can be tracked include dive information Also, location, time, date, objective, skills, environmental conditions etc. Buddy Teams with time-In and Time-Out Emergency Plan Information and much more The Dive Roster is a must for the serious and safe Instructor.