These are great for carpet. I have also used them onroad and they work well. New in box 4 tire set $12 each set plus shipping Priority mail.

http://i231.photobucket.com/albums/ee164/alpharacer/Picture.jpg

Now $10 a set of 4 tires plus shipping
THese normally sell for $17-$20 a pair.
PM for fastest responce.

Still have some left $6.set plus shipping.