For sale is ONE Grinding Disc 7" x 10" x 2.15". 7" ID 10" OD 2.15" width 2" diameter center hole 0.385" small holes 3.5" center-to-center distance between inner small holes 5.5" center-to-center distance between outer small holes This auction is for ONE disc. The picture shows the TOTAL number that we have in stock. However, this auction is for ONE. Thanks. Also, if you order two, the shipping cost will be $15.67.