Washable, non-toxic, quick-drying ink that is fade-resistant and acid-free. Raised pad means you can press stamps down without hitting an edge, offering a larger usable area. Black ink washes off skin and most clothing with warm, soapy water. Packaged in a plastic case with a flip cover to prevent it from drying out. Ink pad measures approximately 3-1/2 x 2". For ages 3 and up.