NutraPet Nutz Tennis Balls 2 Non Squeaker And 1 Squeaker - Small 1.75in The small non-squeaker dog tennis balls measuring 1.75 inches are designed to provide interactive play and exercise for small dogs. These balls are made from durable materials that can withstand chewing and rough play. They are typically made of rubber or a similar material that is tough enough to handle a dog's bite without easily breaking apart. The non-squeaker feature means that these balls do not produce any noise when squeezed or bitten, which can be beneficial if you prefer a quieter playtime experience. Some dogs may find squeaky toys overstimulating, so non-squeaker tennis balls are a great alternative for those dogs who prefer a more subdued play experience.