PURPOSE: To use a putting and an approach at the same time by providing a long putting device and an approaching net device for measuring the flying distance of a stroked ball in contact with a display sheet in which the trajectory is preliminarily calculated, and providing a housing means for collecting them in such a manner as to be disassemble and foldable at no use.

CONSTITUTION: The putting body 1 of a long putting device A is formed of a base 2 and placing base 3 which can be stacked in vertical two stages and separated, and hook locking members 4, 5 are attached on the connecting upper surface 2a of the base 2 and the connecting lower surface 3a of the placing base 3, respectively. When the putting body 1 is assembled, a circular inclined surface 6 formed in the front part is inclined about 1/4 of circular arc, and an artificial lawn mat to be placed extending to the existing floor surface is laid on the circular inclined surface 6. A distance display sheet which can be vertically moved and fixed is mounted on the surface part of the artificial lawn mat laid on the circular inclined surface 6.