Then there is the added benefit that their gums are being stimulated and front teeth are being «brushed» gently by the soft rubber cones lining the bowl. (r2ppet.com)
Kongs are hollow rubber cone shaped toys. (dogbreedz.com)
The KONG is a tough, hollow, rubber cone which can be stuffed with treats or kibble and will keep your dogs busy for hours. (ipupster.com)