This was a test run of the Depth Charge in Ignition plastic which is less flexible than the Collapse blend. But the flight plates came out extremely warped after the plastic cooled. The rims are fine, but the tops of the discs have wave patterns that are so extreme you could almost surf on them. If you’re buying this, you NEED TO KNOW that it is being sold cheap because of the extremely wavy flight plates. They are still fun to throw, but we don’t want to put these out to the general market because of the crazy tops.