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: OXO Good Grips POP Square Storage Container
Product description: The OXO Good Grips POP Containers are airtight, stackable and space-efficient, making it easy to keep your dry foods fresh and your kitchen organized. The Containers have a unique push-button mechanism that creates an airtight seal with just one touch. The button also serves as a handle to lift off the lid. The Containers are designed for modular stacking so that you can efficiently organize your countertop and pantry. In addition, with their square and rectangular shapes, the POP Containers make the most of any storage space, while their corners allow for easy pouring. The POP Containers are available in 11 different sizes to meet your dry food storage needs. They are also great for use in the garage, sewing room, play room and more; in fact, the Containers can be used in so many places that youll want them POPping up everywhere. The lid comes apart for thorough cleaning.
Product brand: OXO
Target attributes: Material
Answer: attribute: material
value: None
source: None