1Thickened base, not easy to leak, large internal capacity, can be filled with water and sand, the base will not swing. 2Made of excellent PVC material, thick and firm, no deformation, not easy to break, durable for use. 3High elastic cushioning, no hand injury, uniform force distribution, natural rebound, reducing shaking. 4Multifunctional boxing bag, suitable for both adults and children, perfect for fitness, entertainment and decompression. 5Exquisite workmanship, perfect gift for boxing enthusiasts and people who want to exercise, suitable for different occasion.