Mess free! Use water to color the pictures. Let it dry and do it again! Each board has search and find activities plus an educational fact. Includes 4 reusable picture boards and 1 refillable water pen. NOTE: Water Reveal boards may warp after several uses. After completing each activity page, use a towel to remove any excess or residual water. Not intended as a bath or pool toy. Product Dimensions: 6" x 9-3/4". Ages 2+.