Petzl D-Lynx Crampons One Size. Screwing crampons directly onto boots reduces weight considerably and improves rigidity and precise placements. Specifications for Petzl D-Lynx Crampons: Manufacturer: Petzl Color: Orange Fabric/Material: Heat Treated Steel Weight: 14.1 oz Climbing Hardware Type: Crampons Features of Petzl D-Lynx Crampons Extremely precise:- Adjustable-length mono-point: a long size for easier edging and a short size for more mobility and sensitivity - Front points adjustable with one screw (Petzl patent)- Shorter secondary points for more lateral mobility and sensitivity- Third row of points oriented towards the back to stabilize and create friction Ultra-light: only 400 g Designed for dry tooling and mixed climbing: - Shape and angle of the points are designed for expert use in dry tooling or mixed climbing- Screw on directly under the sole of the boot for precise positioning increased rigidity and to optimize weight- Comes with two spare front points Package Contents: Petzl D-Lynx Crampons Petzl T25: D-Lynx Crampons One Size