63mm diameter x 180mm long exhaust trim (60mm internal diameter). Chrome on steel. Will fit over exhaust pipes 25mm to 50mm (2"). There are three sets of 2 holes, 5.4mm diameter in which 5mm bolts with nuts placed on the inside can be used to clamp the trim to the exhaust pipe. Alternatively, self tapping 12 gauge screws could be used with Spire speed nuts. PLEASE NOTE that the very low price reflects the fact that these trims are "SECONDS" and need cleaning up and that fixing screws are not included.