LEGO 11024 Classic Grey Baseplate, 48x48 Stud Building Base, Build and Display Board Set & 11025 Classic Blue Baseplate Building Base, Square 32x32 Build and Display Board, Construction Toy for Kids :
LEGo Classic 11024 Gray Baseplate
628 X-Large Grey Baseplate | Brickipedia | Fandom
LEGO Gray Baseplate
LEGO Dark Gray Baseplate 32 x 32 Raised with Pits and Water part | Brick Owl - LEGO Marketplace