These rolls are used at point of sale i.e in departmental stores, multiplex , petrol pump, lottery counter, hotels & restaurant etc.

Edc rolls and pos. roll are used in credit cards swapping machines to record the transaction.
P.O.S rolls are also used at the cash counter of the stores, departmental stores and malls.

Sizes of edc roll are as follow:-
57mm x 21 meter (2ply) carbonless.
57mm x 17 meter (1ply).
57mm x 30 meter (1ply)
Sizes of p.o.s roll are as follow:-
79mm x 50meter.
79mm x 60meter.
79mm x 80meter.

As per to customers requirement.