Circulon 47521 Harmony Utensil Kitchen Cooking Tools Set, Nylon w/Stainless Steel, Chocolate Brown

Why does it melt it it's heat resistant? I use these kitchen wear approximately twice a week, purched it in February and already they are ruined.

how long is each utensil?

Where are the made? What is the country of origin? What country are the manufactured in?

What is the brush intended to clean?