Rigid shoulder neck boxes are used for premium products. You can also use these boxes for shipping or mailing as they are very sturdy and thickness is about 1200 GSM. viveprinting customize your rigid boxes in any style and have the option of fixed or foldable (collapsible) rigid boxes that you can easily assemble. Unlike standard fixed tray rigid boxes, the foldable/collapsible rigid boxes come flat, occupy lesser space and it is easy to store them in the warehouse. We assure you of premium printing quality for your esteemed products.