Only safe materials such as PP, ABS, and TPE certified under KC standards are used, and materials pass harmful substance inspections.

All processes including injection, assembly, magnet attachment, and suction pad testing are standardized to minimize product variations. Each product undergoes visual inspection and durability tests before shipment.

Passed tests for neodymium magnet sealing, repeated opening/closing (over 10,000 cycles), suction retention, and load resistance among other performance checks.

Made from corn-starch-based biodegradable material and tested for tensile strength, thickness, leak resistance, and heat resistance, offering durability and eco-friendliness superior to regular plastic.