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The Petzl Tandem is a double pulley, designed for efficient use with Tyrolean traverses on rope.
For use with ropes of maximum diameter 13 mm, the Petzl Tandem has self-lubricating bushings on the sheaves for efficiency and accepts up to three carabiners to facilitate manoeuvres.
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Usual great quality from Petzl. Great service from Rock & Run as always.
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