This flatware is treated with a Revolutionary nanotechnology. Not just bacteriostatic but Bactericidal (This surface not only inhibits bacteria growth but destroys it). The treatment destroys bacteria cells by blocking their nutrition chain and the ability for the cells to divide and multiply. Five-piece set. Dishwasher safe; do not wash with rough sponges and abrasive detergents Item Weight (Lbs.): 14.0 Made in Italy. Shipping Direct from Vendor, usually ships within 7 business days.