Good Luck Trolls Series 4 Mystery Blind Box Figure (Randomly Selected) Good luck, Troll Dolls! The Good Luck Troll Dolls Series 4 Mystery Box Assortment brings back one of the hottest toy trends since the early 1960s, this time with the fun addition of a jewel embedded in each Troll's belly. This series 4 collection of colorful designs, with an array of hair colors and exotic surface treatments from glitter to metallic to flocked, is sure to surprise and please both collectors and casual fans. The dolls measure about 2 1/2-inches tall. Please note: Item selection is random. Items are in blind packaging. We cannot accept requests for specific items, nor can we accept returns on opened items. You may receive duplicates.