Used with a pencil, the pages are waterproof so you can collect data even on the wettest days. Includes AIARE Communication Checklist, AIARE Decision Making Framework, AIARE Observations Reference, and 50 format pages for entering trip plans, field observations and snow profiles. CONTAINS Developed by the American Institute for Avalanche Research and Education (AIARE), compliant with American Avalanche Association (AAA), Snow Weather and Avalanche Guidelines (SWAG) WEIGHT 90 g DIMENSIONS 17.5 x 11.5 cm