This is a list of weapons used by the Finnish Army, for past equipment, see here.
Main Battle Tanks
Leopard 2A4 - 91 to 100 units. (124 were originally purchased, complemented with an additional 15 units bought to be used as spare parts, another 12 were later disassembled into spares, and 12 converted into combat engineering and bridging tanks).
T-55M - Originally 70 units,30 to 40 still remain in service.