movable cover and support remotely.

A tubular device comprising a tubular structure (12); one removable layer (10 =, comprising multiple interlocking strands (26, 28, 30, 32) in the form of a warp knit, in contact with the tubular structure (12) wherein the strands (16, 28, 30, 32) are configured to separate when tension is applied to one end of the removable layer (10), causing the removable layer (10) is separated from the tubular structure (12); and in that at least one strand (26, 28, 30, 32) is separable from the knitted warp knit to cause the layer (10) disposing upon being applied stress.