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: 20 Pack Oil Rubbed Bronze 1-1/8" (30mm) Square Kitchen Cabinet Drawer Hardware Pull Knobs 1023-30
Product feature: Solid Metal Construction, Size: 30MM (Approx 1 1/8"), 1" Depth Screw, included, Base Size 15MM (Approx 0.6")
Product price: $28.00
Product brand: eBuilderDirect
Target attributes: Finish
Answer: attribute: finish
value: oil rubbed
source: product title