I received Kuuk Silicone Ice Cube Trays in return for my honest review. These trays are made of 100% food grade silicone. They make 1" ice cubes. These are very sturdy, stylish trays. I love the green and blue colors. The silicone make of these trays allow the ice cubes t slip out easy. Unlike plastic un-bendable trays, these can be bent until the cubes pop out. Each tray makes 15 ice cubes. The 1" ice cubes are perfect for cooling off all types of drinks. My son loves to make flavored cubes. He will put juice or kool-along with chopped fruit and make sweet, cool pops. These trays are easy to clean and dishwasher safe. High quality trays. You can check out more about Kuuk Silicone Ice Cube Trays @ http://goo.gl/V6lyDe.