Saw this in Staples yesterday. Its online too but at 3 times the price. They had loads and the shelf ticket was pre-printed so presume this is national.
This is a box containing a pretty heavy duty packing tape dispenser plus 2 rolls of good quality clear packing tape.
Ive seen similar dispensers alone at up to £8 each and the cheapest tape Ive found before is 2 for £1 at Poundland.
Ideal for eBayers maybe or people moving house?
The link is to the same product on their website which comes up at £4.68 incl VAT plus delivery.