Ideal for a large variety of classroom activities and art projects, these 6" diameter stamp pads are perfect for use by young children as they practice writing letters and sight words, or as they label their paintings and other artistic creations. Make hand printing, as well as fruit and vegetable printing, easy and neat! Approved for direct contact with skin and washes off hands, fingers and rubber stamps with the use of soap and water. Nontoxic; quick drying. Primary Kit contains four stamp pads (one each of red, yellow, blue, and green).