the.com/electrical tape

means A thin, stretchy, insulating plastic tape used to wrap wires and electrical connections so they don't shock you or short out.

from The name is plainly descriptive — tape made for electrical work — but the interesting part is the material: early 20th-century insulating tapes were rubber-based, often cloth-backed, coated in sticky rubber compound. Vinyl (PVC) versions took over by the mid-1900s because vinyl stretches, seals tightly around irregular shapes, and resists moisture better. The word 'tape' itself traces back to Old English 'tæppa,' a narrow strip of cloth — so the lineage runs from cloth ribbon to rubber to the glossy vinyl roll sitting in a toolbox today.