gear for a 4yo?

yep, my 4yo has joined a fencing…stable? idk, we are new to this. any recommended gear i should get? i was trying to find a foam foil for him to practice catching rings but amazon isn’t offering anything decent.

i’m obviously not investing in much since he’s 4 and his interests change rapidly, but i’d like to support him in this activity! hoping this one sticks since it seems like a lovely sport for kiddos!

ETA US-based!