US OPTICS folding anti-cant/scope-level, picatinny version. Purchased new this year. Item is like new. This is the folding model. Bubble-level swings out for shooting, and locks with thumb-screw/friction lock. Folds back against rifle for more streamlined carry mode. Removable cover screws off bubble portion, and can be stored on oppposite side (so it doesn't get misplaced). Opinions differ, but I prefer the picatinny mounted levels since they can be seen while positioned behind your scope. Some of the scope-ring mounted levels require you to lift your head.
Preference is to sell locally to avoid shipping/payment hassles, but will ship if no local interest (Portland area). Paid $90. Sell for $65 (includes USPS Priority Shipping - i.e. flat rate small box and delivery confirmation). Will only sell in CONUS.