Indoor Javelin Throwing Balls Flexible Surface | Soft Landing | Low Impact Perfect for indoor training, these throwing balls are designed with a soft, flexible shell that compresses under pressure, providing a safe, low-impact option that won't mark floors or damage walls. The textured surface ensures a secure hold, even during intense throws. View Discus Throwing Balls (1k to 2k) Measuring approximately 3.8 inches (95–100 mm)—slightly smaller in size to a baseball or tennis ball—they fit comfortably in the hand. Whether you're honing technique, building strength, or introducing new athletes to the sport, these indoor throwing balls support effective, year-round training in any environment. Coach Cappos Recommends "You can't throw a javelin year-round. Every comprehensive training program uses single-arm throwing exercises to improve performance. Our javelin balls come in several weights with distinct colors, allowing throwers to keep working on arm speed, specific strength, and release mechanics during all phases of training." Coach Scott CapposBig Ten Coach for 25 YearsUniversity of IowaUniversity of Nebraska What customers are saying "Perfect for throwing indoors against various walls or nets... Feels great in the hand and has a controlled rebound off the wall, making it easy to throw and catch and rack up reps." — J.K., verified ThrowsPro customer (one of 300+ five-star reviews) Key Features Standard Size: 100mm (3.8" to 4") diameter Material: Durable core with a soft, slightly pliable rubber outer shell that provides both resilience and safety during repeated throws. Grip & Feel: Textured, firm surface that delivers excellent grip control while remaining forgiving enough for training beginners and refining elite throwers' touch. Soft Landing: Engineered to absorb impact energy, significantly reducing noise, bounce, and potential damage to indoor surfaces. Lightweight & Low Impact: Designed to limit strain on throwing arms and shoulders during repetitive drills, promoting injury prevention. View Discus Throwing Balls (1k to 2k)
