PTPLUS is a closed marker holder of improved bellows design with a pocket to hold marker tags of types PF, PFC or PP. The new bellows design with grooves decreases the friction up to 50% when the sleeve is pushed on the wire. The holder is transparent and is mounted directly on the cable or wire before assembly. The marker tag can be affixed before or after assembly. The holder does not require much space, PTPLUS02 and PTPLUS10 fit wires to 5 mm terminal block widths. Improved holder similar to PA profile with oval shaped pocket for marker labels and tags. The marker pocket’s resilient design protects and fastens marker tag. Fast and easy assembly of marker by applying pressure once on marker pocket. The flexible bellows design of the holder allows rapid and adaptable mounting on wires and cables.