ZTON Adjustable Bed Furniture Risers Elevation in Heights 3\
- Increase Storage Space - The Bed Riser set includes 4 large and 4 small riser cups that may be used alone or stacked. There are 4 small risers for elevating 3" and 4 large risers for elevating 5". You can also stack a small one onto a large one for elevating 8.