This is refined rosin. Suitable for ballet, musical instruments, woodworking, etc. As shown in the photos, it contains a mixture of powder, granules, and lumps. The size of the lumps varies. Please use the images as a reference. The lumps can be crushed by lightly tapping them with a wooden hammer. When crushing, dust will be released, so it is recommended to do so while the rosin is in a bag. Due to manufacturing processes, the weight is not exactly 50g, but slightly more. Please be aware of this. 100% pine resin (rosin)