Century Kid Kick Wavemaster

Use sand or sand and water

Get your gym work out at home! It's perfect filled mine With water. Packaged really well and super easy to assemble. Love this type of cardio!! So much better than running in my opinion.

Just recieved it and still wait to fill in the base. Everything looks good though. Will try and update again.

Our family has been using this relentlessly punching and kicking multiple times a day. I am 6'4" 210lbs and it may wobble a bit but shows no signs of weakening. Love this Wavemaster! We did add a little duct tape to the threaded end to take of some slop early on and has not been an issue since.

I'm only writing this review because it seems like neither the reviews nor the manual do a good job of illustrating to people the difference between water and sand when it comes to filling the base.The base has a capacity of about 33 gallons. A gallon of water weighs about 8.3 lbs and a gallon of dry standard sand weighs about 13 lbs. Sand is a little more than 1.5x as heavy as water per volume. Going with sand allows you to put more weight in the base per volume.Also water, as a liquid, is going to carry force throughout the water meaning when you hit the bag it will generate waves in the water within the base. Sand on the other hand is solid and will deaden the force not allowing it to carry throughout the sand in the base nearly as much. Sand does a better job of reducing the force that acts on the base from hits the bag takes, meaning it is even less likely to slide around.I'm 6'3 220lbs and I put 250lbs of sand in this base (which is a little under 60 full) and it stands on a concrete floor so there's not a ton of friction and I can open up on this bag without it moving very much at all. The bag height is perfect for my height I would say at about 6'6 this bag may start to be a bit short for you, but everyone around or under my height will probably enjoy this size bag. If you want there to be absolutely zero movement you can grab a thin rubber mat, like what you would place under an elliptical machine, which will adhere great to most smooth surfaces (i.e. concrete, tile, hardwood, etc.) and that should solve most of your issues.If you do decide to go with sand be sure to grab a funnel at Home Depot or where ever you buy your sand at, it'll make filling the base way easier. The manual will tell you to use the bag as a lever to help you distribute the sand within the base, I'd say skip that and just replace the lid, grab the base on the side with the opening and lift with your legs to re-distribute the sand between each 50lb bag.TL;DR: Good product if you want a more sturdy base fill it with sand instead of water, especially if you're a guy and you don't want to have to pull your punches. If you're reading these reviews and you're worried about stability don't be, disregard people who filled the base with water and have complaints about movement so long as you're comfortable filling yours with sand you will get a far better result.

I use it more and more each week awesome setup quality is top notch