20 Piece Set - Glass Food Storage and Meal Prep Containers- Travel Safe Snap On Airtight Locking Lids with Microwave Steam Release Valve- Can Withstand Rapid Temperature Changes directly from Freezer to Oven- Small, Medium, Large, Square, Rectangle, and Circle - BPA Free Reusable Containers are Dishwasher Safe and Easy to Clean 20 PIECE SET- Includes 10 stain resistant bpa-free glass containers which can withstand up to 600 heat and 10 airtight locking lids with a microwavable steam release valve. MEAL PREP- Assorted shapes and sizes allow for versatile meal prep no matter what you have prepared! FOUR SIDED LOCKING TABS WITH FRESH CLICK AIRTIGHT SILICONE SEAL - Guaranteed will not leak even when upside down. Safely store sauces, soups, fruits, vegetables, poultry, meats with longer freshness guaranteed! STACKABLE DESIGN AND COLORED LIDS- The ergonomic design takes up less space in the fridge, freezer, and cabinets. Easily match containers to their lids. SO EASY TO CLEAN- These glass containers are dishwasher safe, stain resistant, scratch proof, and odor free! Easily removable silicone seal on lids allows for easy access for those hard to reach places.