The invention relates to a rollable splint set which comprises an essentially rectangular substrate, said substrate is made of a transparent or translucent thin layer of thermoplastic material having transverse and longitudinal flexibilities that enable the substrate to assume the following three states: (a) a packed-state in which the splint is maintained in a compact rolled configuration (b) a pre-use, unrolled state in which the splint automatically assumes a C-configuration in cross section and (c) a use-state in which the splint wraps an extremity in a C-configuration or a U-configuration in cross section.
