i purchased 12 cartons a few years ago for a project - and have since decided not to use the product. that's why i have so many cartons for sale. i'd like to sell all at once but would consider selling individual cartons.
product has been stored flat, in dry location; so any warping or moisture concerns would not be an issue. and, with exception of one carton, all are still in original shrink wrap. each carton clearly marked with original ph4577 code.