Access avalanche danger before venturing onto a snow-laden slope--this pocket-size inclinometer helps you determine avalanche potential. Printed inclinometer with cord measures slope angle. Card also determines resistance, helping identify weak and strong layers. Printed Crystal Guide helps you observe, measure and evaluate snow crystals. Back of the card features a Hazard Evaluation Checklist which helps to prioritize avalanche data. Comes with an 8.5 x 5.5 fold-out guide and a cord for the inclinometer.