This is a Multiple-entry long-term Canada Visa for grandparents and parents of a Canadian citizen or PR Visa holder. The PGP Super Visa is a provisional Resident Permit. It permits grandparents and parents to remain in Canada for a maximum of 2 years per visit. The validity of this Visa is a maximum of 10 years.
A normal Multiple-entry Visa also has a maximum validity of 10 years. But it permits a stay of only 180 days per visit.