3 years & up. Practice writing and spelling with this fun Carolina Line Compatible Sturdy Magnetic Dry Erase Panel Set for Literacy Practice. This set of dry erase panels fits any of our 24" Carolina Line storage units, sold separately. Children will love to practice writing weekly vocabulary words or using magnetic tiles to spell them out. These panels are also great for magnetic interactive story pieces. You can also use these magnetic panels for classroom announcements. Magnetic board size corresponds with storage unit size.