More than £145,000 has been spent by the government on cats eyes over the past two years.
That's according the Department of Infrastructure, in response to a Freedom of Information request.
It says around £83,000 was spent between 2024 and 2025, and £62,000 in the past year.
The DOI adds it's not possible to give an exact cost for the road studs, as contractors charge an all-inclusive rate.
Two ferries cancelled today, and more disrupted on Sunday
Two Sunday ferry sailings cancelled and two more at risk
Racers' leather company in liquidation
Two Saturday ferries cancelled, four rescheduled
Mountain Road partly reopens from this afternoon
U2 singer's daughter to star in TT film
Thank you for not stockpiling fuel, says government