It’s easy for children to master geometry concepts with these activity-packed cards! Designed for use with pattern blocks (sold separately), the 20 write & wipe cards reinforce skills in 5 key areas—from composing and decomposing shapes to partitioning shapes and more. Recommended Age 6 yrs. - 7 yrs. / 1st gr. - 2nd grade Cards measure approx. 8 1/2" x 11" Smoke and Pet Free Home Same/Next Day Shipping