On clay chips, the edge spots (or stripes) appear to be painted on, but are actually 'inserts' where that part of the clay chip is physically removed and then replaced with clay of a different color. The biggest difference is the two different types of manufacturing equipment being used, as described below: Another is the unique features to deter counterfeiters. One of the key variables is the mixture of the composites that have to be made. The process used to make poker chips is a trade secret, and varies slightly between manufacturers.