The Hub allows multiple users to participate in immensely versatile sessions. Its multi-directional functionality allows up to 4 portable core trainers to be used at the same time. The user benefits from working in multiple planes of motion and targeting each major muscle group, whilst also working the important stabilizing muscles of the core, hips, and shoulders. This product can also be used with Battle Ropes, Power bands, Resistance Tubes, and more. Features Can be used with as many as 4 portable core trainers at any one time Storage system for the Olympic Plates Steel with textured grey tough coat finish Ideal for small group training sessions Dimensions (L x W x D): 1132 x 360 x 277 mm Weight: 41 kg