Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Custom AXL Elite YoYo Bronze
Product description: The Axle and Axle Elite are both precision crafted from machined aluminum. The Custom Yo-Yo Axl Elite has modifed flared design and offers offers quality and performance at reasonable price. The metal body gives it substantial weight and feel. Combined with a high quality bearing, it is a great sleeper.
Product feature: Aluminum, Ball bearing, Butterfly shape, Very lightweight, By Custom Products
Product brand: Custom YoYo
Target attributes: Material
Answer: attribute: material
value: metal
source: product description
attribute: material
value: aluminum
source: product description
attribute: material
value: aluminum
source: product feature