Memminger cello board floor protector

"Developed by a cellist, proved and tested in everyday use
Ideal for any floor (even stone), for tours (in a cello case),when changing places (chamber music). Length easily adjustable to any chair and any body height (even children). Small and light, fits in a spectacle case! Reliable and good for concert use due to 7 advantages: definitely doesn't slip while giving security to the player when changing positions; thick 6 mm loop attached to the steel foot; the rope does not get in the way of the feet, length easily and quickly adjustable; large, stable inserts in hard PVC; length only 14.5 cm, wight appr. 110 gr.
You can adjust the rope length in 15 seconds: a) pull on the rope end to make it longer or shorter b) loosen the loops at the PVC block, c) tighten the rope evenly - that's it."