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: Refresh ALTO-01 Women's Elastic Flat Heel Side Zipper Knee High Riding Boots
Product feature: Product Dimensions: 1 x 2 x 3 inches, Shipping Weight: 3.05 pounds, ASIN: B00EY64KN4, Item model number: ALTO-01, Date first listed on Amazon: September 3, 2013, Average Customer Review: 4.0 out of 5 stars 1 customer review
Product brand: Refresh
Target attributes: Heel Height
Answer: attribute: heel height
value: flat heel
source: product title