The "King's Turkey" legs are each about 21 cm each (~8.27 inches) and smoked with a blend of oak and beech chips.
Since Christmas is more of a feasting occasion, the turkey legs aren't sold individually but only in "King's Turkey Party Sets," which come in two varieties ranging from 2300 yen to 2600 yen in price (~$22.70 US to ~$26.66 US)
They're taking reservations now but the smoked turkey legs won't be available until December 8th.