Material AluminumColor BlackDiameter of inner thread 3.17cm/1.25inchSize 9x4cm/3.54x1.6inchWeight Approx.190g
Diameter of inner thread 3.17cm/1.25inch
It offers 1.25 inch mounting sizes on telescope side.
Outer and inner thread, one side is to fit T-ring, the other side is 31.7mm(1.25''), which fits for telescope mount adapter.
It is compatible for Canon camera
1 x Telescope Mount Adapter
1 x T-Ring for Canon EOS
1 x Extension Tube
1 25inch Black Extension Tube And Astronomical Telescope Mount Adapter For Canon Camera ESMYYBQIK