This is a transparent handlebar tape from the olden days. The "cello tape" looks just like the stuff you get from the stationers, so don't expect padding to damp road buzz or excellent anti-slip qualities. Do expect an almost transparent sheen to cover your handlebar giving a look that I am assured was big in the 1970's. Whilst I have not used it myself, you apply it by wrapping in the normal way and then using a heat source (such as a lit match) to stick it back on itself. The black, red and blue stuff is Italian Ciclolinea from Italy.
Ciclolinea Pack contains two rolls two bar caps.
BLACK TAPE IS THICKER AND NOT TRANSLUCENT