The aluminum crystal card provides a surface to analyze/classify snow grain and also has a slope index, which allows you to determine slope angles from a topographical map. This small yet very informational tool will take your snow safety skills to a new level.
- Dimensions: 6 x 4 in (15 x 10 cm)
- 1, 2, and 3 mm grids
- Protective clear coat
- Crystal and snowpit 'cheat sheets'
- Weight: 1.7 oz (48 g)