Rubber gaskets included (2 pcs).
Note: Will not fit SR-series of rings.
A definite upgrade over the clear level. Makes it easier to see.
Took advantage of lopping these into another purchase to save on shipping (seriously guys, you could ship these with a $0.50 stamp.) Spuhr should make these standard on their rings, as the clear liquid level that comes with the rings is not always the easiest to read in low light. No problem, now I have these for all my Spuhr mounts. No instructions but hey ... it’s pretty straightforward.
I really like the Spuhr scope bases. The Green really stands out nice. much better than the clear that they come with.