DO NOT BUY THIS TOY!!!!

We got this from morrisons buts it's also available on amazon. It's states 3+ my son is 4. We followed instructions I was getting him step back whilst I pressed down on it after 5 mins of fun one of disc's came flying down and has cut his eyebrow. He has a cut bruising and swelling and has been sore all day. I have contacted morrisons and manufacturer. Morrisons have opened a investigation bit no reply from manufacturer. I did Google it and seen exact same injury from a review on amazon. This is no way safe for kids as young as 3. I want as many parents to know this is not safe toy the discs are made of plastic and are really fast wjen spinning.