Strong tube made of ABS: plastic material with high resistance to crushing and impact. This tube is suitable for many processes, in particular for elastic, textured, covered yarn. The tube has a joint for inserting two colored title marker rings (for the color range see the necklace) to be used to identify the yarn titles. This solution allows you to buy the tube in a single color, optimizing space and warehouse costs. At the moment of use, the title marker of the desired color is applied. The tube can be produced with virgin material for internal cycles and for returnable use, and with regenerated materials (usually black) for disposable use.