A strong and light-weight replacement for “Clark Sockets.” Increased clamping force stops rotation of legholders. Teeth are concealed for easier cleaning. Unique design prevents accidental sliding along rail when not in use. Mounts at side rail ends or along side rail notches. Will not hang up on rail-end gravity locks. Indicator marks facilitate faster, easier setup. Accepts up to 5/8 (1.6 cm) round post.


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