4 Lego Compatible Baseplates, Gray, 10 by 10, tight fit with all Lego sets by Smart Toys LEGO COMPATIBLE - These Lego plates are a tight fit to for any Lego set and are a great addition for any collection. 4 BASEPLATES - This item includes 4 Lego baseplates in Gray color. Each plate is 10 inch by 10 inch, with 32 by 32 studs.