4½” x 7” (11.4 x 17.8 cm)
Because each grid has a textured, anodized flat black surface, crystals stay put and a degree of relief is achieved.
Has a low thermal conductivity to minimize melting and preserve the crystals
Dimensions and guidelines for performing Rutschblock, Stuffblock, Compression, and Shovel Shear Tests are etched on the backside.
Snow crystal terminology is etched on the front side to aid in proper recording of conditions in a field book.
By using the attached string and weight, the Snow Crystal Card doubles as an inclinometer with one-degree increments of resolution.
Inclinometer string and instructions included