... per your request HardwareHinge: soft closing hinges, passed over 50,000 times open-close test;Rails: 3 folds ... steel rails, pass over 50,000 times sliding test;Packing Strong export carton ... 25~45 days Soft closing hines: passed over 50,000 times open-close test Soft closing rails ... : passed over 50,000 times sliding test Packing: Bubble bag + ...