Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Dunlop Sports Biomimetic 600 Lite Tennis Racquet (3/8 Grip)
Product description: The Biomimetic 600 LITE is designed for game improvers through to advanced players or players with a shorter swing who seek the ideal blend of power and comfort. The 105sq. inch oversize head enlarges the sweet spot of the racket not only making it more powerful but also making it more comfortable to use. The racket is constructed with premium Aerogel enhanced graphite and features Dunlop's new Biomimetic technology. HM6 Carbon enhances the racket feel; Aeroskin technology reduces aerodynamic drag making the racket faster through the air and the Gecko-Tac grip gives ultimate control in all conditions.
Product feature: Racket Information Headsize: 105 sq. in. Length: 27.25 in. Strung Weight: 10 oz. Strung Balance: 3 pts Head Heavy Stiffness: 69 Swingweight: 316 Beam Width: 24/26/24 mm
Product brand: Dunlop Sports
Target attributes: Head Size
Answer: attribute: head size
value: oversize
source: product description