Long Needle Tubes. Cool little clear polystyrene tubes to store your needles. Assorted cap colors to keep your needles sorted. Long needle tubes are 2 5/8 long inside and can store most needles. (Short needle tubes are 1 7/8 long inside and fit many tapestry needles. Both sizes have interior diameter of 3/8). Can also be used as storage for beads or small embellishments.