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Black Diamond says:
At 405 grams, the Black Diamond Transfer LT is the lightest UIAA certified shovel on the market. Purpose-built for fast and efficient avalanche response in the backcountry, the Transfer LT features an innovative riveted blade that’s lightweight and thin for slicing through debris, while maintaining a large 550 cm2 blade volume for moving a large amount of snow quickly. The two-piece aluminum telescoping shaft is durable while providing comfort, and the entire shovel packs away for fast and light backcountry travel.