Black Screw-In Tremolo Arm 6mm
Black Tremolo Arm with black plastic tip
The tremolo arm itself is 5.2mm, with a 6mm threaded end.
This will fit many import tremolo systems, including some installed on Squier guitars and some Wilkinson, Original Floyd Rose, Ibanez and Jackson tremolos.
You can find out the thread of your tremolo system by testing with machined bolts. If a 6mm machine bolt fits in your tremolo system, this arm will fit.