Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: Chrome Billet Large Round Rearview Motorcycle Mirrors 10mm Pair (2 mirrors) for Honda GL1000,GL1100,GL1200
Product description: Upgrade your old mirrors with a pair of our new chrome billet, 100% metal, round, motorcycle mirrors. They not only look great, but are heavy duty, and built to outlast the competition. Plus, they feature a 100% distortion-free, large, 4.25" glass mirror lens, which allows you to clearly see what's behind you, enhancing your safety. We are so certain of the quality of these mirrors, that we even back them up with a 100% money back guarantee, no questions asked! (*Please note: Although these mirrors are listed to fit for the following models, exceptions may exist. Certain years may use a different size thread, other than the size these mirrors come with. Our mirrors are sold with 10mm metric threads. Please check that your bike is compatible before purchasing. As always, if unsure of compatibility, please contact us before purchasing.)
Product feature: Brand New! Chrome billet, large, custom, round motorcycle mirrors. Sold as a pair (two mirrors), Mirror housing and stem are 6061-T6 billet alumium metal & have three layers of chrome plating added to ensure a high quality shine. 100% metal-no plastic whatsoever., Mirror lens is 100% weather proof, and fully adjustable-allows you to move the lens up, down, left, and right., Dimensions: Diameter of glass lens (horizontally): 4.25" (108mm), Length of stem (not including threads) diagnolly: 7.5" (191mm), Length of threads: 1/2" (13mm), Size of threads: 10mm metric, 100% MONEY BACK GUARANTEE! & WE SHIP FROM THE USA!
Product price: $28.99
Product brand: vipcycle motorcycle parts
Target attributes: Position
Answer: attribute: position
value: rearview
source: product title