A roller device (100; 300), comprising: a core layer, the core layer having an outer surface, an inner surface, a first core layer edge, and a second core layer edge, the core layer comprising a plurality of segments (102a - 102h; 302a - 302h; 702) wherein each of the plurality of segments (102a - 102h; 302a - 302h; 702) comprises an outer surface (104; 304; 704) and an inner surface (110; 310), and a first segment edge (106; 306; 806) and a second segment edge (108; 308; 808), wherein the first segment edge (106; 306; 806) is opposite the second segment edge (108; 308; 808) and wherein each segment edge (106; 306; 806; 108; 308; 808) has a distal edge located at the segment outer surface (104; 304; 704), and wherein each of the plurality of segments (102a - 102h; 302a - 302h; 702) is pivotably coupled to at least one other of the plurality of segments (102a - 102h; 302a - 302h; 702) at the distal edge of the respective segments, and wherein the plurality of segments (102a - 102h; 302a - 302h; 702) comprises a first segment comprising the first core layer edge and a last segment comprising the second core layer edge; and a coupling mechanism having a first portion disposed on the first segment comprising the first core layer edge and a second portion disposed on the last segment comprising the second core layer edge, the coupling mechanism being configured to secure the first core layer edge and second core layer edge; and wherein the roller device (100; 300) core layer is converted from a first position in which it forms a substantially flat shape to a second rigid or semi-rigid position in which it forms a substantially tubular shape when the first and second core layer edges of the core layer are secured to one another and wherein the inner surfaces (110; 310) of the plurality of segments (102a - 102h; 302a - 302h; 702) form a tubular inner cavity. a core layer, the core layer having an outer surface, an inner surface, a first core layer edge, and a second core layer edge, the core layer comprising a plurality of segments (102a - 102h; 302a - 302h; 702) wherein each of the plurality of segments (102a - 102h; 302a - 302h; 702) comprises an outer surface (104; 304; 704) and an inner surface (110; 310), and a first segment edge (106; 306; 806) and a second segment edge (108; 308; 808), wherein the first segment edge (106; 306; 806) is opposite the second segment edge (108; 308; 808) and wherein each segment edge (106; 306; 806; 108; 308; 808) has a distal edge located at the segment outer surface (104; 304; 704), and wherein each of the plurality of segments (102a - 102h; 302a - 302h; 702) is pivotably coupled to at least one other of the plurality of segments (102a - 102h; 302a - 302h; 702) at the distal edge of the respective segments, and wherein the plurality of segments (102a - 102h; 302a - 302h; 702) comprises a first segment comprising the first core layer edge and a last segment comprising the second core layer edge; and a coupling mechanism having a first portion disposed on the first segment comprising the first core layer edge and a second portion disposed on the last segment comprising the second core layer edge, the coupling mechanism being configured to secure the first core layer edge and second core layer edge; and wherein the roller device (100; 300) core layer is converted from a first position in which it forms a substantially flat shape to a second rigid or semi-rigid position in which it forms a substantially tubular shape when the first and second core layer edges of the core layer are secured to one another and wherein the inner surfaces (110; 310) of the plurality of segments (102a - 102h; 302a - 302h; 702) form a tubular inner cavity. <EOS>