Abstract: A spoke is adapted for use in a bicycle wheel that includes a wheel rim and a wheel hub, and includes a spoke body having a pair of coupling end portions that are opposite to each other in a longitudinal direction and that are adapted for connection to the wheel rim and the wheel hub, respectively. At least one of the coupling end portions is tubular. The spoke body further has an intermediate spoke segment that extends in the longitudinal direction and that has opposite ends connected integrally and respectively to the coupling end portions.

Abstract: A small type of seismic shelter case, including an external layer of case of high strength, devised with a main entrance/exit opening and at least one secondary life escape exit, providing the space of containing human body inside; inside the case is fitted with a permeable inner layer of pad of strong seismic absorption and resistant to high temperature, and one safety belt to stabilize human body; and also devised with a storage box with various types of first aid item and rescue item; during occurrence of a strong earthquake, a shelter solicitor may enter the shelter case through the main entrance/exit and self stabilize by the safety belt. The said case can also prevent large rocks from directly falling inside, to reduce seismic hazard and extend the time of protecting the person inside it to wait for external rescue by upgrading the survival rate.