Say Goodbye to plastic food storage bags. These silicone cups have a self-seal closure and are free of BPA and PVC. Use them over and over. They are dishwasher and microwave safe, can be put in boiling water and in the oven up to 400 degrees Fahrenheit. Those bags come in 3 sizes and are available in a “stand-up” style. Start your “zero-waste” campaign today. FEATURES: *food grade materials (chemicals free) *tight closure *strong and flexible *flat base for easy filling *freezer safe *dishwasher safe *microwave safe sizes: small 200ml (6oz.) medium 350ml (12oz.) large 550ml (18oz.) all sizes are approximate measured with liquids