How much does this cost to the nearest dollar?

OMAX 38mm Thread Ring Light Adapter with Protection Glass for Bausch & Lomb Microscopes
This is a brand new ring light adapter with protection glass for Bausch & Lomb stereo microscopes. It fits most Bausch & Lomb model with 38mm standard thread size. Features & Material metal Material metal Material metal With glass inside Mount thread 38mm in diameter Outer diameter 50mm Height 15mm 1-year warranty against manufacturing defects Dimensions 5.28 x 2.76 x 1.18 inches, Weight 0.352 ounces, model number Rank Microscope Lens Adapters 62, Is Discontinued No, Available September 26, 2013, Manufacturer OMAX, Country of Origin China, Material Metal, Color Silver, Black, Brand

Price is $55.00
Price: $54.99