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: 3dRose wb_201976_1 Sports Water Bottle, Multicolor, 21 oz
Product description: Made of stainless steel. Capacity: 21oz;2 twist on caps - 1 easy-flow drinking spout and 1 standard cap. Carabineer clip also included; Custom printed high gloss image sublimated directly to white glossy exterior surface; Fits most cup holders; Not intended for dishwasher or microwave use
Product feature: Fits most cup holders, Not intended for dishwasher or microwave use, Custom printed high gloss image sublimated directly to white glossy exterior surface
Product price: $19.93
Product brand: 3dRose
Target attributes: Material
Answer: attribute: material
value: stainless steel
source: product description