Choose between the XMark Olympic weight plate tree or the Olympic Bumper Plate Tree. The XMark plate tree allows ample room to store and grow your weight plate collection. You can rely on this XMark storage tree to carry the weight and handle whatever you can throw at it in both commercial settings and in your home gym. Keep your weights off the floor, organized, and protected with this compact, presentable vertical storage tree. Four swivel casters make moving your equipment a breeze. Easily roll your weights and bars out of the way and utilize the two locking casters to keep it in place for convenient storage. Note: This storage tree was designed to be used with casters. To protect flooring, casters must be used. The XM-9055 is designed to store Olympic weight plates, while the XM-9057 conveniently stores Olympic bumper plates. XMark is a trusted brand found in schools, gyms, and homes across the United States. Long-lasting quality is what you can expect from XMark.