This is a handmade product made by simmering natural rosin for a long time, with no additives. It's made by pouring rosin onto baked goods. The performance is not sticky, but has a smooth feel, while still providing excellent grip on the strings. Because it's handmade, there may be some overflow, but this does not affect the performance at all. It prevents the sound from flipping over. Please give it a try. We have received feedback from purchasers saying that it was very good. We have also received positive reviews from cellists, such as "The strings cling to it with a stickiness, and the sound has transparency and the overtones are amplified." Thank you for viewing.