Chainring - 110 x 34t - 12012
Made in the USA by Vuelta/Origin8 aluminum chainrings.
Middle ring 110 mm bcd (bolt circle diameter) x 34t.
All silver with no ramps or weird shaped teeth or pins. Absolutely nothing fancy about these rings, and that's a good thing. Can be used as a middle or big ring. Plain and simple looking rings at good prices.
Here's a neato tool to keep that chainring nut from spinning round and round.