This is a Chinese stencil clarinet.
DON'T buy this one.
Bore: 14.6mm at top and bottom of LH joint.
Barrel: 61.7mm, Very Short!
The workmanship of the instrument looks good, but the key work is very soft. The horn won't stay in adjustment.
The intonation, once you pull out 3 mm is not all that bad.
A student who doesn't know this about the horn and who pulls out the same as the neighbors will be way out of tune with everyone else.
This clarinet is plastic, and the tone holes with rings do NOT have tone hole inserts. The body was molded in one step including the tone holes.