Watch on 123Movies. A young birch is selected from the forest as a class tree. Class trees are pulled into the canopy with a sledgehammer. The drying sauna smokes. Class trees are bent in a press using ropes tied to the ends of the tree and a rotating press. A close-up of a whip loop attached to the end of the class tree. Class finishing, bark removal with a metal blade and a plane. Class is attached to a harness. Pair of horses harrowing.