A frame (100, 200, 300, 500) comprising: a first panel (102, 202, 302, 502,) defining a first distal end (110, 210, 310, 510,) and a first base end (124, 224, 324, 524,), wherein the first distal end is spaced from the first base end; a second panel (104, 204, 304, 504,) defining a second distal end (112, 212, 312, 512,) and a second base end (126, 226, 326, 526,), wherein the second distal end is spaced from the second base end; a flexible support extending between the first panel and the second panel; wherein at least one pivot axis (118, 218, 318, 518,) pivotally connects the first base end of the first panel and the second base end of the second panel, such that the first panel and the second panel are configured to rotate relative to one another about the at least one pivot axis; wherein the first distal end is configured to move relative to the second distal end; wherein at least one of the first distal end of the first panel and the second distal end of the second panel is configured to pivot towards an opposing one of the second distal end of the second panel or the first distal end of the first panel in response to application of a force from an object being pressed against the flexible support in a direction at least partially towards the first base end and the second base end; and wherein both the first panel (102, 202, 302, 502) and the second panel (104, 204, 304, 504) are configured to apply lateral forces at least partially towards the other in response to the application of the force from the object against the flexible support in the direction, such that the object may be engaged therebetween, the first panel (102, 202, 302, 502) and the second panel (104, 204, 304, 504) are integrally connected at an intersection of a first hinge section (128, 228, 328, 528) and a second hinge section (130, 230, 330, 530); at least one fold line (132, 232, 332, 558) is disposed between the first hinge section (128, 228, 328, 528) and the second hinge section (130, 230, 330, 530) on the at least one pivot axis (118, 218, 318, 518); characterised in that the frame (100, 200, 300, 500) includes a taper (158, 258, 358, 558) having a narrowest section at the fold line (132, 232, 332, 558) to allow the first hinge section (128, 228, 328, 528) and the second hinge section (130, 230, 330, 530) to pivot about the fold line (132, 232, 332, 558). a first panel (102, 202, 302, 502,) defining a first distal end (110, 210, 310, 510,) and a first base end (124, 224, 324, 524,), wherein the first distal end is spaced from the first base end; a second panel (104, 204, 304, 504,) defining a second distal end (112, 212, 312, 512,) and a second base end (126, 226, 326, 526,), wherein the second distal end is spaced from the second base end; a flexible support extending between the first panel and the second panel; wherein at least one pivot axis (118, 218, 318, 518,) pivotally connects the first base end of the first panel and the second base end of the second panel, such that the first panel and the second panel are configured to rotate relative to one another about the at least one pivot axis; wherein the first distal end is configured to move relative to the second distal end; wherein at least one of the first distal end of the first panel and the second distal end of the second panel is configured to pivot towards an opposing one of the second distal end of the second panel or the first distal end of the first panel in response to application of a force from an object being pressed against the flexible support in a direction at least partially towards the first base end and the second base end; and wherein both the first panel (102, 202, 302, 502) and the second panel (104, 204, 304, 504) are configured to apply lateral forces at least partially towards the other in response to the application of the force from the object against the flexible support in the direction, such that the object may be engaged therebetween, the first panel (102, 202, 302, 502) and the second panel (104, 204, 304, 504) are integrally connected at an intersection of a first hinge section (128, 228, 328, 528) and a second hinge section (130, 230, 330, 530); at least one fold line (132, 232, 332, 558) is disposed between the first hinge section (128, 228, 328, 528) and the second hinge section (130, 230, 330, 530) on the at least one pivot axis (118, 218, 318, 518); characterised in that the frame (100, 200, 300, 500) includes a taper (158, 258, 358, 558) having a narrowest section at the fold line (132, 232, 332, 558) to allow the first hinge section (128, 228, 328, 528) and the second hinge section (130, 230, 330, 530) to pivot about the fold line (132, 232, 332, 558).