This is the .013 8x10" Sheet of Copper from K+S Metals.
FEATURES: Ideal for metal punch designs, holiday ornaments, framing, and children's products May also be used when restoring antique furniture requiring copper sheeting
INCLUDES: One .013 9x12" Sheet of Copper
SPECS: Dimensions: 8 x 10" (203 x 254mm) Thickness: .013" (0.3mm) Gauge: 28
BOX DIMENSIONS: 8.00" W. X .13" H. X 10.38" L. BOX WEIGHT: .47 LBS.