I had been using another brand HH Tambo (nickel, and then brass), and under heavy use/ after many gigs, the "spindles" would back out and I'd wind up tracking down jingles on the riser after the set!! The spindles on this unit are threaded and lock nut secured. I may add some heatshrink to keep the jingles from keyholing over time. The dimpled bronze jingles have a GREAT sound that is drier and darker than the other models I've used and I really dig it! Made really well!