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Make sure the Black Diamond Chalkboy Bouldering Bag is at the ready when your crew hits the rock or the plastic for a full-blown sesh. The Chalkboy holds enough chalk for a day-long send-fest and zips closed to keep chalk from going all over the place. An external mesh pocket holds brushes and other cleaning necessities while the zippered front pocket keeps your car keys from disappearing when you walk from problem to problem.

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