Brunton Grain Size Card Geology Reference Tool F-GRAINCARD

New Brunton Grain Size Card w/10 Classifications F-GRAINCARD The Grain Size Card is an essential field geology reference tool for the visual classification of sediments by both size and shape. Features: Weatherproof, durable, lightweight card can handle exposure to any type of weather. Transparent card stock with both a negative and positive sides for easier reading and comparing grain size in the field. Card Data:  10 grain size classifications including phi scale, grain shape reference, millimeter ruler. An essential accessory and tool for field sediment classification work. Weight:  0.2oz (6g) Size:  2.5" x 3.675" x 0.6" (6.35 x 9.33 x 0.2 cm) Made in the USA in Riverton, WY. Model:  F-GRAINCARD Retail packaging, shipped in a poly envelope.  Shipping weight 1 oz. If you have any questions or concerns, please contact us before or after the sale - we want you to be a happy customer! Thanks for looking!