Brooks Range Snow Crystal Card Pro

The Brooks Range Snow Crystal Card Pro is designed with the professional in mind. Uncluttered with expansive 1mm 2mm and 3mm snow crystal grids provides a stable base and grids for examining snow crystals. It also doubles as an Inclinometer by using the attached string and weight. The Pro Snow Crystal Card 1 mm 2 mm and 3 mm grids are laser etched to provide texture for the crystals. The inclinometer increments of 1 degree crystal and centimeter and inch rulers.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.The 1 mm 2 mm and 3 mm black background grids provide excellent viewing of various snow crystal forms. Because each grid has a textured surface crystals stay put and a degree of relief is achieved. The millimeter grids easily allow estimates of crystal size. Features:Etched with information on snow crystal typesInclinometer string and instructions includedapproximately 4.6 x 7