I would strongly urge anyone who has purchased a yo-ball to destroy it and puncture it safely somewhere.

I bought two for my grandchildren. The boy hit himself in the eye. On cutting open the little girl's one, there was a really toxic smell and the ball began leaking a sticky substance.

Reading in the papers, I saw a five-year-old girl received burns when one of these toys exploded.

What on Earth is inside them? It is certainly not water.

-Mrs J P Marshall, Seaford