The LEGO Castle in the Forest 910001 is a limited edition set from the 2021 BrickLink Designer Program. With a total of 1957 pieces, this plastic building toy set is designed for ages 18 and up. Featuring a fantasy theme with elements of buildings, the set includes characters like a horse, knight, and farmer. This complete set comes in a box packaging and is manufactured in Denmark, making it a collectible item for LEGO enthusiasts and fans of intricate building projects.