Abstract: Presented is an integral assembly (2) of hollow tubes and seal caps (16) therefor arranged in an elongated aligned and integral assembly in which multiple tubes (1) each symmetrical about a longitudinal axis (3) and having a closed end (12) and an open end (6) are formed in side-by-side spaced relationship in a linear series in which adjacent tubes are integrally interconnected by a tether (13) to form an elongated strip (2). A multiplicity of seal caps (16) corresponding in number to the aligned series of tubes are independently, angularly and integrally flexibly connected to associated tubes. The seal caps, when in tube-open condition, are each symmetrical about an axis (17) parallel to the axes of the tubes and correspond in spacing and in number to the tubes. A hinge strap (14) is provided integrally interposed between each tube and the associated seal cap.