Merseyside Police are hunting a flasher who has exposed himself to a number of teenage girls and women in Tranmere.
They have released a e-fit of the man, who has struck repeatedly around Bebington Road and Willowbank Road.
The last incident was on Thursday 6 March.
He is described as aged 50-60, 5ft 7in, chubby, wearing glasses and grey tracksuit bottoms. He was also wearing a dark jacket and a black beanie hat.
Schoolchildren in the area are being given safety information to help protect them as they walk to and from school.