【Reliable Construction】: Made from quality, thick PVC material, ensuring Spike Replacement Balls are sturdy and resistant to damage. The premium material offers good elastic and abrasion resistance, making it suitable for long term use. 【Quick and Convenient Inflation】: Equipped with a fast inflation pump, allowing for simple and quick inflation to save time. Maintains good air pressure after inflation, reducing the need for frequent adjustments for ease of use 【Versatile Usage Across Various Settings】: Roundnet Game Replacement Balls Ideal not only for indoor volleyball games but also great for outdoor activities and family entertainment. Its versatility allows you to enjoy sports anytime anywhere 【Materials】: Spike Game Balls are made from quality PVC material, ensuring reliability. Suitable for both children and adults to use together 【Compact Size with Complete Set】: Features a compact diameter design that is easy to handle. Comes as a complete set including balls and an air pump, ready for immediate play Specification: Material: PVC Package Includes: Spike Game Balls and Pump Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!