yes i know there screwed up. and i know what parabolics are and i dont have them. there pvc rollers that have been exposed to heat and sunlight which does crazy **** to pvc! I already wrote nashbar. Just waiting for a responce i doubt there warrentyable because there a bit older. Just weighing my options..if theres only 4 comments in a thread do the world a favor and actually read more than the OP...