One 24" Rociprolap lap plate only. This cast iron lap plate is 24" across and has cavities of 3/16" x 1/2" to help distribute the grit. Approximate weight of the lap plate is 80 pounds. The retail price listed includes a $80.00 wood crate fee. Note: a 10% discount will be given at the Shopping Cart. The units last for a very long time, but at some point you will need to replace your worn lap plate with a new one. Use the worn lap plate for the polishing lap plate or some regrind the cavities. Inquire to Covington Engineering Corp. for a re-dimpleing of the cavities of the 24" unit at a cost of $82.00. The Rociprolap machine and parts are now being manufactured by the new owners, Covington Engineering Corp. FOB Redlands, CA.