4.6 x 7 inches
Where to Buy
Our Grid Card provides a stable base and expansive grids for examining snow crystals. Uncluttered with only large areas of the 1 mm, 2 mm and 3 mm grids to determine crystal size and shape.
During production, the high quality aluminum is partially textured and then anodized flat black for oxidation, contrast and for easy crystal identification. The metal has low thermal conductivity to minimize melting and preserve the crystals.
Here's what other sites are saying:
Brooks-Range Mountaineering Avalanche Safety Grid Card 16239000. The aluminum plate is textured so crystals stay put with a flat black anodized finish for maximizing contrast. The metal has low thermal conductivity to minimize melting and preserve the crystals. Sized at approximately 4 x 7 it will easily fit in your field book pocket and the Brooks-Range Field Organizer.