Initially introduced as Cecilia’s 10th Anniversary Special in 2018. Two rosin formulas with different properties in one unique block. The outer ring formula gives a silky smooth bowing experience with a focused sound on the strings. The center formula kicks in when the player demands more power and gutsiness from their instrument.
 
"I have been trying out the new Signature Formula from your CECILIA Rosin collection and I really love it. It is strong but not too grainy creating a full and rich sound. It also lasts longer so I don’t have to rosin my bow as often. I have tried at least 30 different brands of rosins over the years, but CECILIA Signature is my favorite. Bravo!" - Glenn Dictrow, Former Concertmaster - The New York Philharmonic