Works exactly how you'd want it to work. I didn't think I needed this so I performed the trick for 10 months without it. When I decided to get this, I realized 3 things:
1. It looks very nice with the silver tip.
2. It protects the needle and it protects whatever the needle is in from being poked
3. The needle slides so smoothly and quickly into the balloon every time. Before the needle was dry & slow to go in which endagers the trick from not working.
I am very glad I purchased this. I use it almost weekly!