Prang DAS Air Hardening Modeling Clay, 2 lb., White Felt Play Sets & Play boards Make fizzy and foamy reactions

Make fizzy and foamy reactions and write messages with invisible ink

You can extend the tumbling action across the room by connecting multiple mats via the attached hook and loop extensions

Create magical multicolor art

Set includes 25 mini motor cars in 5 colors

Prang DAS Air Hardening Modeling Clay, 2 lb., White Felt Play Sets & Play boards Make fizzy and foamy reactionsDAS Air Hardening Clay is an excellent modeling clay for art projects. This clay hardens in 24 hours and then is usable with any type of decorating medium. It is super pliable yet allows you to produce a permanent work of art, and doesn't require oven baking , but provides ample open time to complete projects before hardening.