These used to be made by KODAK but are now manufactured by Urbanski Film in the USA. We have imported them for the last 10 years . They are very easy to use with any film splicer. There are two strips one to stick on each side of the film. It can also be used to repair damaged sprockets.

These Presstapes are for the splicing or repair of super 8 mm Cine Film. Each pack contains 40 strips which is enough for 20 splices. Each tape is perforated and transparent.
 To use, Stick a strip on each side of the film for a strong splice. There is a Kodak  UNIVERSAL  PRESS TAPE SPLICER, but it is very rare to find these days. Don't Despair, Almost any super 8mm splicer can be used but you will have a slight overlap of the film.
 The u tube video shows you the basics  https://youtu.be/7svDF_Gc8pk.
 Any Questions just ask me
Regrettably we have had to increase the cost as we have been hit by a tax and surcharge of 30% by the carrier