$25 Seat Belt Pillow Travel Pillow by SewCCC on Etsy Perfect solution for your kiddo's (or yourself) bobbing heads on those long roadtrips. Cotton fabric on the front, soft minky on the back; completely WASHABLE. Attaches to the seatbelt with three velcro tabs. Each pillow has a pocket. Measures approx. 24x9. YES, they do work with a 5 point harness carseat - Attach velcro straps to the top shoulder strap and the opposite bottom lap belt.