Good as a door stopper but boy could you get high of the fumes these bad boys give off! We aired ours outside for a week and they no longer smell as potent. But with the design attractive to children, along with it being a safety device would not have expected it to 'gas-off' so badly, even though they're cheap. No CE or Kite mark should have been a give away. Just don't let your precious little ones get them near their mouths. Contemplating just chucking them!