For Empty or Spare U locations in Network and Storage applications, the products could be used for closing and giving a good visual performance to cabinet. In Hot or cold air flow applications, the blanking panels could be used for directing the cold or hot air through. Sizes are various between 1U to 6U in 19'' width size. Solid metal toolless model, with special turning clips by hand toolless application can be performed. From Steel Material with 2 bends extra strength given. Supply in RAL 9005 Black and RAL 7035 Light Grey colors. 1U and 2U sizes have the slotted models, providing the ventilation possibility.