Dogs that bolt their food swallow air with it, and that leads to wind, sickness and in deep-chested breeds a real risk of bloat. The usual fix is a bowl with ridges. This goes one step further and makes the dog work for each mouthful.

A clear roller with three chambers sits across the top of a triangular frame. You load it with dry food or treats, and as your pet nudges it with a nose or paw it turns, in either direction, and drops a few pieces into the tray underneath. The tray itself has raised ridges, so even what falls out has to be licked from between them. It measures 21 x 18 x 13cm, stands on raised non-slip feet, and the roller opens and lifts out so every part can be rinsed.

• 21 x 18 x 13cm
• Clear roller turns both ways to release food
• Ridged tray slows eating further
• Raised non-slip feet
• Roller opens and detaches for washing
• Green, yellow or pink

On size and strength: At 21cm long this is for small and medium dogs and for cats, and it takes dry kibble and small treats, not wet food. It is plastic, so it is a feeder and not a chew toy: a large or determined dog will push it around the floor and may carry it off, so supervise the first few meals.

Who it's for: small and medium dogs that inhale their dinner, bored indoor cats that will work for treats, and puppies that need something to think about.