Save time and money – Prep Naturals' new meal prep containers are perfect for people who are looking for an easy way to save money and time. Their premium look and ease of use encourage healthy eating and cooking your meals at home. Safe and easy to use – these meal prep containers are made from bpa, pvc and phthalate free materials and are 100% food safe. Easy opening is achieved with convenient flaps whilst keeping these meal storage containers watertight and leakproof when closed. Portion Control - These lunch containers with portion control help you stick to your diet plan and lose weight. The food prep storage containers can also be used as office meal containers. Freezer and microwave safe – These round food containers are incredibly stable and durable thanks to their robust design and construction. Both freezable and microwaveable they can to withstand temperatures from -20C to +110C (-4F - 230F) It is not recommended for use in a microwave with a wattage output of higher than 800 Watts. A microwave set higher than 800 watt may damage the container. Customer Service - Please, if you have any questions or issues regarding the Prep Naturals meal prep containers set please do not hesitate to send the seller a message through Amazon we will respond within 24 hours.