inner carbon. It's something beetwen Innerforce Layer Alc and TimoBoll Alc. Less boll feeling than Innerforce, less flexy but same control, slower than TB Alc and similar crispy little hard felling. Paires good with tensor and hard tacky rubbers. Loops are good, spinny, powerful and even smashes are easy to execute.
 
Higher throw than Viscaria, a little bit less speed, better spin, longer dwell time, better control, muted feeling. The ball result has quite similar to Victas ZX Gear