Thank you for visiting. This is an old-model M5 ICS EST The CHANNEL disc plate from BURTON. It is compatible with old-model BURTON bindings from the round disc era. With this, you can attach the binding to a board with the old-model M5 ICS EST The CHANNEL inserts. It cannot be used with current Re:Flex bindings. It is for BURTON boards with the old-model M5 ICS EST The CHANNEL raised insert rail. The metal parts are very clean, and I judged it to be almost new. These parts have become quite difficult to obtain. For those who have an old-model CHANNEL board with a raised insert rail and are having trouble attaching bindings, how about this? Free shipping and same-day dispatch.