Small/Medium fits necks up to roughly 45cm, which covers spaniels, terriers, whippets and most cockapoos. Medium/Large is for labradors, collies, shepherds and anything with a thicker neck. Measure the neck with a tape and leave two fingers of room.

No. The flashing collar goes on as a second collar over or beside the everyday one, so the ID tag stays on a proper collar and the light is not hidden behind it. UK law needs the tag on a collar in public whatever else the dog wears.

It is a fetch toy with a battery inside, so it is for supervised play and goes away afterwards. If a piece cracks off, bin it. For a dog that only wants to chew, a hard rubber ball is the better buy.

The collar and blinker run on coin cells and give weeks of short daily walks; the ball lights on impact and outlasts a season of fetch. All three take standard replaceable cells you can buy anywhere.

Small / Medium dog, Medium / Large dog. Pick one above before adding to your basket.

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

Use the size guide above to measure your pet, then pick the size whose range your measurement falls within. If you’re between sizes, size up. Still unsure? Email us before you order.

You have 30 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.