This unique hardware lets you turn virtually any bench into a glider! Measures 7-1/2" between centers with 1-1/4" offset. With rust-resistant plating and ball bearing pivot points. Mounts with common 1/4" dia. bolts (not included). Set of four.Technical Details:Offset project legs and sub-base 1-1/4" on each side. Mounting holes should be vertically aligned 7-1/2" apart on opposing surfaces (between the project sub-base and project legs).Rust-resistant plating and ball bearing pivot points. Mounts with common 1/4" dia. bolts (not included).Set of four.Made in the USA.