The Equate Walker Tennis Balls in yellow are designed for walkers, using natural rubber latex as the material. Made by the brand Equate, these tennis balls are specifically made for walkers to provide added support and stability. With a durable and comfortable surface, these balls help improve the mobility and overall functionality of a walker, making them essential accessories for those who rely on walking equipment for their daily activities. NWT. Stored and shipped from a clean, smoke free home.