If you buy this set, do yourself a favor and throw away the bocal swab as the first thing. It's too wide where the swab is glued to the pull string and will get stuck inside your bocal, potentially ruining it.
The wing joint and boot joint swabs are great, and the set is worth the price for those two alone. >just don't use the bocal swab< or at least be extremely careful if you do and don't pull too hard