Now you may be thinking, "Why do I need another device to tie my balloon knots when I can do everything with my fingers?" That's a good question. You should know that although it is possible to tie whatever you want with your fingers, it is not recommended. Tying balloon knots with your fingers puts a lot of strain on them.
When using this device, however, the fingers are relieved when tying and knotting. This will keep your fingers in great shape and you won't run the risk of injuring or spraining them.