Male M54 to Male M63 M54x0.75mm External Thread Adapter to M63x1mm External Thread Ring for Astronomical Telescope Accessory

Specification:

Material: Metal - aluminum

M54x0.75mm external thread, with a thread length of 5mm.

M63x1mm external thread, with a thread length of 3.5mm.

Package including:

1x Adapter Ring

Picture show: