A rawhide alternative only earns the name if a dog will actually work through it, and a knot shape gives a dog something to get its teeth into without the recipe needing meat at all.

These knots are built from sweet potato flour (87%) and rice flour (12%), with vegetable glycerin, calcium propionate, potassium sorbate and brewers yeast rounding out the recipe. They come out very low in protein and fat — crude protein (min) 3%, fat content (min) 0.5%, fibre (max) 0.5%, ash 1%, moisture (max) 17% — and contain no meat, wheat, dairy or eggs. They are not suitable for puppies under 4 months old.

• Sweet potato flour 87%, rice flour 12%
• No meat, wheat, dairy or eggs
• Crude protein (min) 3%, fat content (min) 0.5%
• Fibre (max) 0.5%, ash 1%
• Not suitable for puppies under 4 months
• 150G pack, purple

One thing worth knowing. At 3% protein and 0.5% fat this is a genuinely low-nutrient chew rather than a meaty treat — the appeal is texture and a meat-free ingredient list, not calories or protein content, so it should not be counted as a meaningful part of a dog's diet.

Who it's for: owners of a dog with a meat, wheat, dairy or egg sensitivity who want a chew to offer instead of rawhide, for a dog over 4 months old.