For anybody interested in a metal framed rack system for their large boas, I've had a complete set-up from Jon Roylance for a few weeks and can highly recommend them so far. They came ready to plug in and everything fit exactly as it was supposed to. Everything down to the casters seem to be of the highest quality. I'm sure Jon could have shaved corners in some places but he very obviosly didn't. He seems to have produced an excellent rack system of the highest quality that I'm sure will last a very long time and make keeping and cleaning my collection even easier! He was also very accomodating with special requests. I had Jon put heating pads on both sides to give me different options as far as hot spots go and the boas I've put in them seem to love the idea!!! My plan when I have gravid females is to provide them with three options for heat, the ambient temp, or either one of the two heat pads on each end of the rack set at different temps. I'm looking forward to working with Jon in the future and ordering more of the 4'racks along with the other sizes that will be available. They definitely get my "thumbs up".