Meteor 7.5 x 15 x 23 cork yoga cube 31462 , which are not stretched sufficiently. Depending on the exercise performed, it will help strengthen and improve the flexibility of selected muscle groups. It affects stabilization body position and reducing the risk of injury caused to muscle stretch. Adequate durability, resistance to denting. Compact dimensions. Technical data:· dimensions: 7.5x15x23 cm· material: cork