Rectangular battery hold down kit for 6 7/8" wide batteris. Kit comes with hold-down bar and (2) 8" long L-style hold-down rods and wing nuts. Pleace the cross-bar over the battery， slide the L-brackets through the cross bar and locke the "L" end of the rods into the notches in the battery tray. Screw-on the wing nuts to secure the battery into the tray.