Police believe two men are behind a Dandenong milk bar armed robbery and a string of other south-east incidents.
They said thieves stole a gold-coloured Nissan Maxima from Glen Waverley about 8pm on Thursday 4 May and drove the car to a pizza shop in Wheelers Hill 20 minutes later.
Police said men wearing balaclavas and carrying a knife and a metal pole entered the restaurant, stole the cash register and smashed a window.
They then drove the vehicle to Dandenong, where they entered a milk bar on David Street at 8.30pm and stole cigarette lighters and tobacco pouches.
The men tried unsuccessfully to open the cigarette cabinet.
Police said they next drove to a petrol station on Stud Road, Rowville, and forced their way inside with a metal pole and box cutter at 8.40pm.
They then left the store, causing damage to the glass doors.
One of the men was described as being 180 centimetres tall with a thin build and wearing a black and blue flannelette jacket.
The other man was described as 185cm tall.
Call Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au with any information.