🔥 Leofoto CF-02 replaces Canon's original lens collar foot and provides a lower profile and a lower center of gravity for a better balance 🔥 The CF-02 lens replacement foot has built-in Arca-Swiss dovetail mounting and includes a Quick Detatch(QD) Socket for quickly attaching a compatible strap and maintains the 3/8" & 1/4" threaded mounting holes. 🔥 Light-weight, Low profile and provides the best possible stability for your lens 🔥 Leofoto CF-02 Replacement Foot for Canon EF 100-400mm f/4.5-5.6L is I & II USM Lenses 🔥 Limited 10-Year Warranty. Two safety stops are located on the bottom of the foot, which prevents accidental lens release when a quick release receiver clamp is partially open