QUALITY IS OUR PRIORITY: Our borosilicate glass containers is made of some of the strongest glass out there. It's not totally unbreakable, but it almost is! Our containers are heat and cold resistant from 400 F to -20 F and absorb thermal shock of 120 degrees. Our lids lock perfectly to the glass containers with our BPA free, eco-friendly silicone seal, creating an air-tight seal to keep your food fresh.

GROOVED LIDS MAKE FOR EASY, MESS-FREE STACKING: Some containers use a flat lid which isn't great for stacking. Your containers can slide around and fall off. Our lids are grooved which is perfect for stacking. No sliding, or messy, falling containers.