I am used to the golf balls that are a bit soft, and have a metal shell the fits tightly over the balls. The Vernet shell is bigger and loose. Also, the "grip" surface is hard for me to get used to. These balls might be great for some, but not for all.

While a good classic piece of magic in its own right. I actually don't use these that often in my shows, but I do use them sometimes. The product itself is made with great grips and are made of a durable plastic. I found these most useful in helping me with hand dexterity, and helping me sleight principles like angles. For the price they're great: If you are starting out in magic and want an inexpensive effect. To practice your sleights, and angles. Also a great piece of magic and I also recommend doing them to music in shows.