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Petzl Climb Antisnow Balling Plates-Irvis T03AAS. The low profile design doesn't reduce the projection of the points. There is an ANTISNOW specifically designed for each Petzl Charlet crampon.
Features of the Petzl Irvis AntiSnow Antiball Plate Very efficient against Snow-balling in any type of Snow Bi-material and Dual-Density, for great durability and efficiency
The Petzl(R) Antisnow Plates fit onto Irvis Crampons to avoid build-up of snow between the points.
Petzl Antisnow Plates
$30 - $46
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Petzl Vasak/Sarken Antisnow Plates
Kahtoola KTS Snow Release Skins
$13 - $19
Grivel G10 Antibott
Petzl Assymetric Linking Bar
$20 - $51