I've seen these but IMO it is best to teach the importance of safety rather than use tips that won't hurt a person. You don't want your grandson to get used to the idea that his bow cannot hurt someone.
Yes they are called MOR archery targets and are very safe. I have used them for after school archery and for a church youth group. They will stop arrows form any bow with the proper tips on the arrows. They are an investment at over $100. but if you live in a area that frowns on arrows flying around then they are a safe option. But for one on one instruction, I have to agree with z28melissa teaching safety is always the top priority when getting kids started.
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