Constant Level Oiler, Reservoir Cap. (Oz.) 2 1/2 oz, Height (In.) 4 1/4 in, Width (In.) 2 1/2 in, Thread Size 1/4, Bowl Dia. 2 1/2 in, Glass, Capacity 2.5 fl oz, Function Maintains Constant Level Of Oil And Prevents Accidental Overfilling, For Use With...