To me they are all stun guns..
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A support crew member prepares food for a passenger train at Yinchuan Railway Station in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Jan. 20, 2014. It is estimated that over a million passengers will travel by trains operated by the Yinchuan passenger section of the Lanzhou Railway Bureau, which is in charge of railway transport in Ningxia and Gansu, during the 2014 "Chunyun", a 40-day Spring Festival travel rush period starting from Jan. 16. About 1,800 support crew members from the Lanzhou Railway Bureau's Yinchuan passenger section will be dedicated to services during the "Chunyun". (Xinhua/Peng Zhaozhi)
Logistic workers of China Railway Express (CRE) carry passenger luggage at Yinchuan Railway Station in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Jan. 22, 2014
A railway support crew member cleans bedsheets for a sleeping car in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Jan. 20, 2014.
Children play at the Lanzhou Baihe Ice and Snow World in Lanzhou, capital of northwest China's Gansu Province, Jan. 22, 2014. Children enjoy their winter holiday by playing with ice and snow in Lanzhou. (Xinhua/Chen Bin)
Passengers with children get on a free bus at Fuyang railway station, east China's Anhui Province, Jan. 22, 2014. "Take You Home", a free bus service provided by the local government, was launched today at Fuyang railway station. The program will be serving from Jan. 22 to 28 for all passengers going home for the Spring Festival. (Xinhua/Liu Junxi)
Zuo Linshu(L top photo) and his partner Xi Hongqiang wait for a train on Wuhan Changjiang River Bridge in Wuhan, capital of central China's Hubei Province, Jan. 22, 2014. Zuo Linshu is a trackwalker who is in charge of maintenance work of Wuhan Changjiang River Bridge. Because of the Spring Festival travel rush, more frequent and careful check is needed for the safety of trains. He spends 8 hours to check the track 8 times a day. The 57-year-old Zuo would soon embrace the 34 Spring Festival on the bridge without his family. (Xinhua/Hao Tongqian)
Trackwalkers paint the walkway on Wuhan Changjiang River Bridge in Wuhan, capital of central China's Hubei Province, Jan. 22, 2014.
Passengers carry their luggage to enter the Zhengzhou Railway Station in Zhengzhou, capital of central China's Henan Province, Jan. 22, 2014. China has kicked off its annual Lunar New Year travel rush period, with more than 3.62 billion trips expected to be made on roads, and via trains, planes and ships around the Spring Festival, which falls on Jan. 31 this year. (Xinhua/Li Bo)