I'll make this short and sweet.
It's a milkshake shop and stick shop, "stick" meaning a higher form of Popsicle. A Popsicle is frozen sugar water; these frozen treats are variations of frozen gelato flavors from lemon, mango, and even red velvet.
This London born idea specializes in milkshakes and you can pretty much mix and match any flavor from Nutella and Heath Bar to Skittles and salted caramel, which I don't recommend mixing by the way. I ordered two "sticks", a birthday cake, coated in white chocolate with sprinkles and a plain watermelon flavor.
These were both awesome. The birthday cake tasted like... birthday cake! The white chocolate and sprinkles were a tasty and fun addition to this frozen treat. It was a little messy eat as the sprinkles fell off sporadically, but this was still super tasty. The watermelon had a fresh flavor and was actually very refreshing considering it was made of gelato.
These bars will set you back about $5 plus each, but you get what you pay for. You pay a couple of bucks you get frozen sugar water, for a couple bucks more you get a frozen chunk of heaven.