The 30" lap plate is for use with the 30" Rociprolap. The retail price listed includes $80 for the crating fee for shipping. Weight of the cast iron plate is 155 pounds. Built to industrial standards with 3/16" x 1/2" cavities for easy distribution of grit. If you need to re-dimple the cavities in your 30" lap plate, (price is $96), please contact the new owners, Covington Engineering Corp. FOB Redlands, CA Shipping charges will be determined and approved before shipping. Shipping weight is 185 lbs.