LD Silver Kings Box by L. Ducat is a king-size cigarette product manufactured by JT International U.S.A., Inc. (JTI Liggett), the fourth largest tobacco manufacturer in the United States. The LD brand is marketed under the "LD by L. Ducat" trademark owned by JT International SA, a subsidiary of Japan Tobacco International.

LD cigarettes are positioned in the super value cigarette segment, where JTI Liggett holds the number one market position. The Silver variety is a light/silver blend offering, consistent with industry conventions for reduced-tar or milder cigarette lines. These are sold in king-size format in a box configuration and are available at select Costco warehouse locations.