Trim a small glass with a lid, inside 7 bags of green mixtures, I bought to take with you to class. The lid is very tight and snaps loudly (perhaps developed), but the best surprise for me - in no balls, or any other system for whipping - just a glass! I did not expect this, though, in fairness, in the photo and the description says nothing about the ball, but I still thought it would be at least some rod or spiral in the lid. In general, the product is good as a probe, it is convenient to try it before ordering a large jar. A ball would have to be taken from the home of a shaker or ordered separately.