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

Input:
Product title: Sumnacon Assorted Drawing Watercolor Pencils - 3.0 mm Recycled Wood Water Soluble Colored Pencil Set with Metal Tin Case for Artist Sketch Writing, Secret Garden Coloring Book (Set of 24 Colors)
Product description: Features: The print effect,smooth drawing sensation of these colored pencils will give you a excellent experience on creating your art masterpieces. They come in a beautiful tin that is very slim, compact, and portable.. Theyre easy to throw in a backpack for creating beautiful art on the go. You can create beautiful watercolor masterpieces without the mess of traditional tubed watercolor paints. The pencils are pre-sharpened and can be sharpened again with any traditional pencil sharpener. The colors are so rich and vibrant for creating just the right hues and blends. Specification: - Material: Wood - Quantity: 24 - Weight: 10.6 oz - For Age: for Children 3 Years and Above Package Include: - 1 Set of 24 Assorted Drawing Watercolor Pencils
Product feature: Smooth vivid and bright, use of these pencils both in their wet and dry forms, Produces in accordance to the non-toxic standards, they are completely safe for use by anyone, including children and pregnant women., High quality drawing pencils for writing, drawing and sketching, artists and hobby users., Come with a durable Metal tin case, Safety and convenient carrying anywhere, A great gift for your families and friends.
Product brand: Sumnacon
Target attributes: Quantity
Answer: attribute: quantity
value: set of 24 assorted drawing
source: product description
attribute: quantity
value: 24 assorted drawing
source: product description
attribute: quantity
value: set of 24 colors
source: product title