The Original Wavemaster® from Century® has a durable vinyl cover and high-density foam padding. The base can be filled with sand or water, and its rounded design offers easy roll relocation. Eight height adjustments from 47" to 68" allow students to practice a variety of kicks and punches to take their training to the next level.
Doesn't matter if you put in water or sand, this thing will NOT stay put unless you anchor it to the ground. It's durable and all, and I liked the adjustable height, but every hit will make it inch away from you. If you're hitting it quickly and lightly, you'd save money by buying a speed bag. If you're hitting it for force, just ask your landlord (why would you buy this if you owned your space?) if you can hang a bag.
First of all, delivery of the product ON TIME right before Christmas was perfect ! Product itself was easy to manage/set up, seems sturdy. Decent boxing gloves are mandatory, as wrist injury could certainly occur without protection. While it will be well used by younger family members for some fooling around, it is definitley a "real" piece of boxing/fitness equipment & seems to be sturdy enough to endure a beating.
This bag is a great bang for the buck. Not super high quality, but I have been using it for the past year and it works great. Vinyl hasn't ripped, and it takes the abuse of being punched and kicked around by fellow martial artists. It's not made to be used for compeditive boxing, but works great for honing your technique. Good price for a bag and stand--especially if you're limited on space.