So sorry, but only 4 items are allowed for comparison, so we're comparing the first 4. I blame the gnomes and so should you.
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The Energizer Batteries by Petzl. These heel spur assemblies replace the standard heel sections of the DART or DARTWIN. Aggressive teeth provide solid purchase on both ice and rock. Equipped with SIDELOCK binding system.
SPECIFICATIONS of the Energizer Batteries by Petzl