Sellotape

Sellotape (/ˈsɛləˌteɪp/) is a British brand of transparent, cellulose-based, pressure-sensitive tape, and is the leading brand in the United Kingdom. Sellotape is generally used for joining, sealing, attaching and mending.

In much the same way that Scotch Tape came to be used in Canada and the United States when referring to any brand of clear adhesive tape, Sellotape has become a genericised trademark in Britain and a number of other countries where it is sold.