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

Input:
Product title: Atlas Homewares A848-WG Sleek Collection 1.6-Inch Knob, High White Gloss
Product description: A848-WG Finish: High White Gloss Features: -Sleek collection. -Zinc die cast construction. -Hardware for cabinet. Style: -Contemporary. Primary Material: -Metal. Fasteners Included: -Yes. Pull Type: -Arch pull. Dimensions: -1'' and 1.5'' screws included . Overall Height - Top to Bottom: -0.3". Overall Width - Side to Side: -1.6". Overall Depth - Front to Back: -0.9". Overall Product Weight: -0.069 lbs., The name says it all for this Sleek collection. This line is the epitome of modern. The smooth, clean feel of these pieces can make any space instantly contemporary.
Product feature: This line is the epitome of modern, The smooth, clean feel of these pieces can make any space instantly contemporary, Zinc die-cast material, 1-inch and 1.5-inch screws included, 32mm center-to-center measurement
Product price: $6.21
Product brand: Atlas Homewares
Target attributes: Knob Shape
Answer: attribute: knob shape
value: None
source: None