Abstract: A device which allows a choice of stopping positions for a swinging door mainly comprises a body having a cylindrical well together with a passage hole vertically formed through the body, an operation means includes a plunger normally supported by a spring, a friction body received under the plunger. Said plunger can be plunged repetitively between a suspension position where the friction body is suspended properly above the ground and a stop position where the friction body is pushed in association with the plunger to touch the ground to stop the door at a selected position through friction effected between the friction body and the ground.

Abstract: An improved stand comprises a substantially "H" shaped supporting frame which was pivoted with an also substantially "H" shaped shifting frame. There are rollers provided on the lower end of the shifting frame and properly exceeding the lower end of the supporting frame when the shifting frame is at positions close to the supporting frame, thus we can force the shifting frame to rotate toward the parked supporting frame to temporarily take over the support of the supporting frame, and adjust the position of the parked motorcycle or motor-bike easily within a narrow area.