A damper includes a vehicle-body-side mounting portion, an axle-side mounting portion, and a vehicle height adjusting mechanism for adjusting a distance between the vehicle-body-side mounting portion and the axle-side mounting portion. The vehicle height adjusting mechanism includes a first tubular member formed into a bottomed tubular shape, a second tubular member formed into a bottomed tubular shape and inserted from the bottom side into the first tubular member, and a stopper member having a shaft portion and a locking portion provided at a proximal end of the shaft portion. A distal end of the shaft portion is fixed to the bottom of the first tubular member. The shaft portion is inserted through a hole formed in the bottom of the second tubular member. The locking portion abuts on the bottom of the second tubular member.