Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Motegi Racing FF7 Gloss Black Wheel With Clearcoat (17x7"/4x100, 114.3mm, 42mm offset)
Product description: Through technical partnerships with leading professional racing teams, Motegi Racing wheels are inspired by performance. Motegi Racing was conceived to develop the most advanced performance wheels through innovations in design and engineering. Through the development of high-quality wheels, we provide to our demanding customers a product that delivers the ultimate performance in racetracks and street. Our technology and design follows a true philosophy of pure performance, allowing the form of the wheel to follow the function necessary to succeed in different racing environments. Whatever your passion in performance automotive is, Motegi Racing is your partner in the pursuit of authentic performance.
Product feature: Available in 16 17 and 18 diameters with various widths and off-sets, Gloss black painted finish with clearcoat and center cap, Lifetime structural and a one-year finish warranty against peeling or lifting of finish, Lug nuts are not included with wheel purchase, Pictures are meant to show the style of the wheel not necessarily the bolt pattern please refer to product specifications below for exact product information
Product brand: Motegi Racing
Target attributes: Number Of Lugs
Answer: attribute: number of lugs
value: None
source: None