Constructive Playthings Supplemental 5 Set Multi Colored Ink Large Washable Stamp Pad Kid Set for Rubber Stamps JUMBO SIZE: 7 &frac14;&rdquo; W makes it perfect to fit kids hands and stamps of all sizes SAFE: Non-toxic ink makes pigments safe for children age 3+ MESS-FREE FUN: Pigment is easily washable from most surfaces making DIY, scrap booking and art projects easy CONVENIENT: Stamp pads are stack-able for easy storage, long lasting colors are applicable on paper, wood and fabric DURABLE: strong plastic is crack and leak resistant; ink has long shelf life, if pad is dry add a bit of water.