Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: KONOV Vintage Stainless Steel Gothic Snake Biker Men's Bracelet, Color Black Silver
Product description: Why choose Stainless Steel Jewelry? Stainless Steel jewelry does not tarnish and oxidize, which can last longer than other jewelries. It is able to endure a lot of wear and tear. And it is amazingly hypoallergenic. Such advantages make it a more popular accessory. Why need Stainless Steel Jewelry? High quality stainless steel has high resistance to rust, corrosion and tarnishing, which requires minimal maintenance. Stainless steel is one of the most bio-compatible metals, so stainless steel jewelry is amazingly hypoallergenic because of its anti-allergic properties. As one of the strongest of all jewelry metals, it does not oxidize and will be very durable. All makes it a top fashion accessory to complement your wardrobe with the sleek, contemporary styling offered by our stainless steel jewelry. KONOV Vintage Stainless Steel Gothic Snake Biker Men's Bracelet, Color Black Silver
Product feature: Including one velvet bag printed brand name "KONOV" on it., Color: Black & Silver, Width: 11mm(0.43") Length: 8"(20.3cm), Material: Stainless Steel, Package Dimensions: 5.1 x 3.5 x 0.4 inches, Shipping Weight: 2.08 ounces, ASIN: B00F2L07SC, Item model number: 10022505, Date first listed on Amazon: August 31, 2017, Average Customer Review: 3.1 out of 5 stars 2 customer reviews
Product brand: KONOV
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None