1901-1-006-06 Features: -Just snap in! All Kendall Howard Spacer Blanks are now TOOL LESS!. -4 mounting holes per U space. -Individually formed by coining each bend, which adds as much as 5 times the product strength. -Each corner features radius corners for optimum safety and handling. -Constructed from heavy 14-gauge steel. Country of Manufacture: -United States. Dimensions: Overall Height - Top to Bottom: -21". Overall Width - Side to Side: -8". Overall Depth - Front to Back: -1". Overall Product Weight: -6 lbs.