Subway Handle / Subway Handle

When we ride in subway, we can see handle for short people and 2 out of 10 in front of long seat are hanging longer than existing handles by about 10cm. However, since they cannot be adjusted, tall people can be hit in the heads and get damages due to the long handles in rattling subway. Also, in the hectic commuting hours, in the crowded subway, there are many people feeling uncomfortable due to the lack of handles. The handles were designed as normally people can use a handle but when the subway is crowded with people, two people can use a handle by turning it, and also the length of divided handles can be adjusted by height of each person.