Home.co- Silicone Ice Bucket MouldThe cylinder ice cube mold is made of food grade silicone and ABS material, which is safe, BPA free, non toxic, odorless, can withstand long term low temperature storage without breaking, and is durable. Practical and lightweight personalized silicone mini ice bucket, to make, after filling the inner bucket with water, insert it into the silicone cup, gently press the bottom of the lid to expel the air, then put it in the refrigerator for a few hours.