Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Gamma Seal Lid
Product description: The Green Gamma Seal Lid converts plastic 3.5 to 7 gallon buckets into airtight storage containers. This works well for storing everything from food such as rice and flour, pet food to paint and shop needs. Anything you want to keep fresh and airtight will be well stored in a bucket with a Gamma seal lid. The patented Gamma2 Seal Lid uses two gaskets to assure an airtight and leak-proof seal. The Gamma seal lid is proudly made in the USA from BPA free, FDA approved food grade plastic., Gamma2 Gamma Seal Lid, Transform your bucket into an easy opening, airtight, pest-proof storage container with the universal Gamma Seal Lid. When attached to virtually any 12" diameter bucket (3.5- to 7.0 gallon), the Gamma Seal Lid provides airtight protection for the contents---excellent for literally thousands of storage applications. The resilient elastomeric gaskets keep air and contaminants out, while protecting the contents. Stackability is also a handy feature! The Gamma Seal Lid is available in a variety of food-grade colors for safe storage., We care about the safety and storage of food, for people and pets! Gamma Seal Lids are completely recyclable., Supplied parts: Screw on/off threaded lid with gasket Adapter ring with gasket. Bucket not included., Replacement gaskets for lids are available online
Product feature: Pet Food goes stale! Gamma2 keeps your food fresh!, airtight seal protects the contents!, easy spin on/off lid, Keeps food fresh!, Pet Food goes stale Gamma2 keeps your food fresh, Airtight seal protects the contents, Easy spin on/off lid, Keeps food fresh, Pet Food goes stale Gamma2 keeps your food fresh
Product price: $14.95
Product brand: Gamma2
Target attributes: Material
Answer: attribute: material
value: plastic
source: product description