The Caesar Series® (C-Series) is the new design of the T-Series. The C-Series is also available with or without Impact Spikes and without the Impact Spikes head (the head is being developing to breach windows or doors for emergency situations). The difference between the PugioLight® -1 head and the New C-Series is that the spikes are much stronger and smaller which means you can better use the power of your punch (the moving energy is more effective) the Impact Ring has "36 Spikes". You can find the C-Series head also in the PugioLight® - 2". The technology design of the C-Series is the same as the T-Series and TL - Series. The C- Series is available with Fish-Skin and M-Skin and is available in black, blue, and red.