Bought this for my AQ2 kick drum rosette mount, as it's way more simple in comparison to the stock tom tom mount (Sonor DTH 4000 Double Tom Holder) - But does the job just as well, is more compact and weighs much less. It might not be as versatile as the DTH4K, but for basic tom mounting on the kick drum, it does the job as expected. The main pipe is 25,4 mm in diameter and the whole fixture is in the usual high Sonor quality. Definite recommendation.