Longest chain of ring pulls / tabs

Longest chain of ring pulls / tabs
Who
Unknown
What
40,250 metre(s)
Where
United Kingdom ()
When
A 40.25km 30mile long chain made between Feb and May 1990 and shown on ITV's Telethon '90 programme, consisted of 2,067,692 ring pulls and weighed 3/4 of a ton.