The LEGO Creator Expert 10255 Assembly Square Set is a highly sought-after complete set with a plastic construction, featuring a unique design suitable for builders aged 16 and above. With a release year of 2017 and a retirement year of 2022, this set offers a challenging and rewarding building experience for those interested in intricate building projects. The set includes a brick separator for easy handling and comes packaged in a box, making it a great addition to any LEGO enthusiast's collection.