The Playology Silver Dental Chew Stick is specifically designed with senior dogs in mind. This chew stick allows them to safely play with more comfortable chewing without sacrificing any fun. Its softer material is more gentle on their gums while the deep grooves will clean their teeth as they play. The Silver Dental Chew Stick is scented with Playology's Encapsiscent Technology to keep them engaged and chewing longer. The scent is subtle so you won't notice it, but your dog will! This toy is easy to wash with warm water and is made from dog-safe materials, free of lead, phthalates, and other harmful toxins.