4 Pics 1 Word Level 1129

Answer:
Tube
Hint
What is the answer to the 4 Pics 1 Word level with Blue plastic tubes , A moving subway car , A pink straw , and A glass tube of urine ?

Hint
What is the answer to the 4 Pics 1 Word level with Blue plastic tubes , A moving subway car , A pink straw , and A glass tube of urine ?