Bango Set of 4 Pieces DIY Mini Ice Ball Makers Mold, 6*5.5cm/4*4.5cm Food-grade Pp Material Ice Pop Mold/ice Mold Tray (6*5.5cm) 1.100% food grade PP material with FDA & LFGB approved, Such ice tray is Environmental, cold-resistant,non-toxic, non-sticky,odorless,Nitrosaminefree and easy for cleaning, durable lifetime 2.Great way to include healthy foods into yours and your children's diets 3.Safe for dishwasher, freezer and refrigerator 4.Seals well and is balanced for no spilling in the fridge during freezing 5.This is a simple DIY handmade activity, adults and kids all can join in, DIY happiness is always with families and friends.