Sellotape 960914 Invisible Tape 18mm x 25m 2 Roll Blistered Hangsell Pack Invisible tape is a smooth matt finishing tape that can be written on, making it perfect for labeling. It is also suitable for mending books and documents. The tape will appear invisible on photocopies. Tape can be used on its own or with a desktop dispenser with a 1′′ (2.5cm) core. It was first introduced in Australia in 1938 and is now owned by Pilot Pen Australia Pty Ltd. The Sellotape brand now incorporates a wide range of tapes; from the classic ‘sticky tape’ to invisible, double sided, masking, packaging and specialty craft tapes.