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: De Blossom Collection Women's Mid Calf Faux Fur Boots
Product description: De Blossom is a fashion shoe brand based in California. De Blossom shoes offer a wide array of styles including heels, wedges, flats, shoes, sandals and boots.
Product feature: Synthetic, Synthetic, Synthetic, Imported, Synthetic, Synthetic sole, Shipping Weight: 3 pounds ( View shipping rates and policies ), ASIN: B07CB8832J, Date first listed on Amazon: November 16, 2014, Average Customer Review: 4.1 out of 5 stars 211 customer reviews
Product price: $27.94 - $46.99
Product brand: De Blossom Collection
Target attributes: Shaft Height
Answer: attribute: shaft height
value: mid calf
source: product title