Durafit Seats Covers are made to your seats exactly and designed for long term protection in a rugged environment. Good insulation for comfort on those hot days of summer. Instructions. 4 parts. 1) A back with pockets on the back, slide cover over and join the Velcro at the the bottom of the seat. 2) Seat base, position on seat And push flap through to back of seat by hinging seat back forward. Take straps from front under seat to buckles at rear and connect and tighten. Attach Velcro straps across the base avoiding wires. 3) Slide armrest covers on. Enjoys years of comfort and Protection. Machine washable, hang dry. Cab models with a suspension seat need KU10 with adjustable headrest, NOT this seat cover.