First of all I absolutely love mine....had them for about 2 years and definitely the most comfortable seat I have used. One thing I would recommend if possible is to buy them from someone local if that is an option. Mainly for 2 reasons.....1. You are supporting local businesses and 2. If you ever have any warranty issues they should be able to take care of it for you on site. If not, you have to ship them back at your cost ($17.30 for me via USPS cheapest method for one seat) and then they will ship the replacement back to you. Again, I love the seats and hope to get many more years use from them!!