Collectible Puzzle Erasers Crazerasers. 4 Pieces Set. by Fashion Angels. $0.99. Ages 6 and Up. Take apart, developmental puzzles. Eco Friendly: No PVC and Safety Tested. Series 2 - Random Styles. Deconstruct and Reconstruct, use them at school or leave them un-used and cool. Trade 'em, Save 'em, Collect them ALL!