Promotional release with OMO soap powder in The Netherlands. Available from several supermarket chains including Albert Heijn. Black tub with orange lid. Instruction book labelled 4026/4027.
Special Edition Tub（Special Edition Tub）属于拼砌桶系列积木套组，整个套组包含 200 个积木颗粒。乐高LEGO 4538 首发于2004年。