UPS CUSTOMERS: Please note that depending on the location, UPS shipping per box of clay can vary from $20 - $40 per box. Please consider this when ordering clay. castingslips Armadillo Casting Slip - White cone 04, 1 - 4 cartons The price posted is for each 2 gallon carboard carton. We are unable to ship this by UPS or USPS. armcast$11.00 Laguna Porcelain Slip - Cone 5/6 - 1 gallon Very White. 1 gallon plastic jar, 15 lb. Though the picture looks gray, the tile is white. NS125$13.40 Toshi Porcelain, cone 10 Fires white in oxidation and eggshell in reduction, comes in one gallon plastic jar, smooth. Weight 15 lbs. WC829$12.55 Armadillo Casting Slip - White cone 04, 5 to 20 cartons The price posted is for each 2 gallon cardboard carton. If ordering less than 5, use button for single. Not able to ship via UPS or USPS. armcast-6-20$9.90 Armadillo Casting Slip - White cone 04, 21+ cartons The price listed is per 2 gallon carboard carton. If less than 21 is ordered, the price correction will be made. Not shipped via UPS or USPS. armcast21$9.00