Hello. Sorry if this is an off topic or random question, but how good is the quality of the amenity kits in business class on the flight from JFK to Madrid?

I am doing a 2 month solo trip around Europe and will be staying in hostels and was going to buy a travel eye mask, earplugs, and toothbrush, but are those contents from the Iberia business class amenity kit good enough quality to use for my trip? Or should I just buy my own travel gear? Thank you!