16x16 mount only
These arms are made of high grade carbon in 0.5mm thickness layers. Thinner layers make the carbon much stronger and is much more expensive to manufacture. These arms do not have a chamfer on them.
I bought these Dead Cat arms on the recommendation of KababFPV here in the shop because I couldn't get them anywhere in Germany. What can I say ... first class quality and the delivery was so fast. I was totally surprised that I got my arms so quickly ... absolutely awesome