The Sunstone 3 In. spacer panel for the back of the cabinet is perfect for adding the perfect little extra space between two cabinets. The panel is measured at 3 In. width x 34-1/2 In height including kick plate. It is constructed with all 304 stainless steel with a #4 brushed finish matching with all other Sunstone cabinets and products. It is easily installed with simple pin-locks, simply align any two opposing cabinets next to one another and simply lift and drop the panel in between the two – pushing down to secure tightly in position. Most often this panel will be used for adding extra needed spacing between two cabinets, adding more space the top side grill, sink, or tightening up any gaps in your overall cabinet width installation area. Be sure to additionally purchase the opposing 3 In. front panel item no. SCC3SPF, as this panel is for the back of cabinets and is typically only used for when a cabinet island is not installed against a wall and the back of cabinets are exposed. This spacer panel is not needed if your cabinet island is installed against a wall, the front spacer panel is all that is required, as the counter can easily extend over the small gap.