Excellent sealing performance: The lunch box is designed with a soft sealing ring, which owns wonderful sealing performance, perfect for outdoor usage, no afraid of pumping problem.
Durable: The lunch box is made of high quality food-grade PP material, which is tough, hard, anti-rust, wear resistant, durable and robust,
owning long using life span. The PP material is safe and non-toxic, reliable to use for long time.