Exact Fit Seat Covers compatible with Hustler Fastrak Zero Turn mowers..2 piece seat with armrests. Good insulation for comfort on those hot days of summer. Instructions. 4 parts. 1) Slide the cover over the back section and join the Velcro at the bottom of the seat. 2) Seat base, position on seat And push flap through to the back of seat. Take straps from front under seat to buckles at rear and connect and tighten. 3) Slide armrest covers on. Enjoys years of comfort and Protection. Machine washable, hang dry. Check your seat against picture to make sure you have the correct configuration