2x Dog or Cat LED Flashing Red White Blue Hi Vis Safety Collar Blinkers WITH 6 Extra Batteries £3.97 Sold by rapidtradezone, Fulfilled by Amazon. £3.99
Says for dogs or cats but I actually bought these for my pet stoats and they work a treat. Just attach to your pets collar and twist the tube to trigger the light. Brilliant, even when he's down a drain or something I can see the reassuring glow. Nice quality item and with the extra batteries you can't go wrong.