Two kinds of large deflection plane folding hinges. named OSD-LEJ (outside-series-deployed lamina emergent joint) and IOSD-LEJ (inverted-outside-series-deployed lamina emergent joint). are designed with flexible segments arranged in series on the outside. taking into account the inverted design principle. https://www.parisnaturalfoodes.shop/product-category/super-advanced-adult-probiotic/