Our handy black Snow Grid Decal makes quick work of snow crystal analysis by providing 1 and 2 mm grids to measure crystal size and shape. The decal measures just 1¾” x 3¾”, making it compact enough to apply to any flat surface where you need it.

Created in response to customer demand, production of these decals was delayed until we could find just the right material tough enough to withstand sustained outdoor use. We've succeeded! This decal passed all our field tests for durability even under extreme conditions.

Clean surface area thoroughly prior to application.
Size: 1.75 x 3.75+" (4.4 x 9.52+cm); Weight: 0.1 ounce (2.83 g)