Super Large CapacityThe overall expanded size of Kmise under bed storage: 23.6x15.75x6.3 inch and about 40L/10Gallon capacity.It can meet all needs of your storage of out-of-season clothes, shoes, blankets,toys and other items. 360° Flexibility & Fixed WheelsThe wheels makes this under-bed storage box easy to pull out.And to prevent the bed bottom storage rack from sliding freely, we designed 2 of the 4 wheels can be fixed by pushing the switch above. You can choose to move it freely or fix in a certain position according to your needs at any time.