That's a 10 dollar savings over all three separately, and a $25 saving on all three made custom! This is the November attachment set, named after their early development names.
You save a little on the individual toys and a lot on colors.
The Hub attaches to the Oracle for easier tying into place as a gag, the Oracle is a good handle for using the Pommel as an external vibe, or you can attach the Pommel to the Hub for a vibrator with an interesting pattern of contact around the glans, a nipple, or wherever.
Lots of ways to play! Bullet vibe not included.