This rosin is wonderful, nice sound, with good stick (I've used the dark). I use it for cello but it also works well for little violin bows that may not have hair in the best condition and need more grip. The container is the best selling point though. Perfect for kids (or accident prone adults) who need better quality rosin than the wood block style, but still want protection from drops. Love having the plastic box integrated - with the flip top lid it's fully protected and there are no parts to get lost or separated, and the twist dial on the bottom is genius for using the rosin without developing a groove. I love the ease throwing this rosin in my purse, without a cardboard box that gets mangled or the lid toppled off. I recommend this to all my students. It's good quality, lasts and won't get broken or the container lost. It's a definite win!