Handy and adorable, this chinrest tightener fits on any keychain. Regular screwdrivers will not, of course, work on a chinrest – so grab this wrench and have it with you, so you never have to utter the dread words: “If only I could tighten my chinrest, but how?"

Made of solid titanium, which is used to design spacecraft – but for stringed instruments, what you need to know is that titanium is lightweight, strong, and rust-proof!