4 Colors in each box, Each pad is 3"" x 1 1/2, Each set contains a 4 in 1 Washable Non-Toxic Child Safe pad, This will enable you to stamp out 4 colors of each stamp aiding you and your students in counting sorting grouping connecting or comparing these items, These stamps can also be used with manipulative to record solutions and extend manipulative activities, SKU: EDRE7263