The Preston Offxbox36 Space Bar includes 30mm round inserts, and can also be used with 36mm round with the inserts removed. Compatible with 19mm square inserts and adaptable for 25mm round and 23mm XS square inserts, this versatile space bar is also usable with original Offbox Pro inserts by fitting them inside the 30mm insert.·       Supplied with 30mm round inserts·       Fits 36mm round with inserts removed·       Compatible with 25mm round & 23mm XS square inserts (sold separately)·       Compatible with Original Offbox pro inserts by fitting inside the 30mm insert·       Product Code: P0110052