This is a sandbag. I purchased it in January of this year, but I haven't used it much, so I'm selling it. It has been used a few times. It's slightly tilted. It will tilt further in 2-3 days, so it needs to be filled with air. The weight at the bottom is water. The top is air. It will be handed over deflated with the water removed. How about it for stress relief or as a toy for children? Size: 160cm Sport: Mixed Martial Arts Brand: Lananplus Color: Sand-kun Item Weight: 0.7 kilograms Outer Material: Polyvinyl Chloride (PVC) [Supervised by an active professional boxer] With the Lananplus sandbag (punching machine), adults and children can have fun, relieve stress, and get exercise! Perfect for boxercise and playing with your kids! You can easily practice boxing, karate, etc. at home. Let's move your body and relieve stress! [High-quality and durable material] Made of high-quality PVC material with a thickness of about 0.3mm, and the seams are also strong, so it is highly durable and will not leak air even after long-term use. When not in use, it can be folded compactly and stored in 24cm x 16cm x 6cm. It is lightweight and portable, and can be used not only at home but also in outdoor scenes such as offices, gyms, and gardens. [With air pump] Comes with a convenient air pump, and a clear color Japanese instruction manual is included on the back of the package, so you can use it immediately after receiving it. Assembly is easy! It can be completed in about 15 minutes by following the instructions. [Safe design] Since it is air-filled, gloves are not required. It does not put a strain on your hands and feet, and it will not scratch the wall when hit. In addition, the water inlet is designed with a large diameter of 3cm, making it easy to fill with water, and the double-layered cap design eliminates the risk of water leakage during normal use, so you can use it with peace of mind.