Taken below description from internet for product. Full gallon, just dirty with overspray. Reg retail $92.18 gallon

LusterStone® is a low luster metallic plaster. Easily applied by trowel, LusterStone® is unsurpassed in its dimensional, beautiful decorative results. The very act of application does the decorative work for you, forming soft metallic plaster high and low effects and reflective patterns. No burnishing is required! LusterStone® metallic plasters are available in many stunning metallic designer colors. You and your walls will love the handsome look of LusterStone®!

LusterStone® is the professional choice for quality and beautiful results. Try LusterStone® on your next decorative finishing project and see for yourself why so many professional decorators and finishers are raving about *Covers Approximately 50 - 150 sq ft per gallon