The product is a vintage 15" Snap-On 1/2 inch drive ratchet with the manufacturer part number 71-15. It is a single item long handle ratchet with a straight design and a quick release feature. This ratchet is designed for automotive use and is a high-quality tool suitable for various mechanical tasks. The underlined patent number indicates that it may have a unique design or feature that differentiates it from other ratchets on the market.