This strap on bag is very handy. Carry your AI supplies in this handy pouch. Holds paper towels, syringes, brushes and other necessary items you need to keep handy. It measures approximately 11" L x 7.5" W x 1.5" D. Made from polyester and it has a smaller inner pocket. The inner pocket measures 4 inches wide x 7 inches long x 2.5 inches deep. Can be thrown in the wash or wiped off easily with a wet rag. Buy with a one inch wide belt or two inch wide belt.