Scs Direct Bricks Building Blocks Baseplates - Large 10' X 10' Stackable - Variety Pack Plates With Dual Connectivity(6 Pk) Compatible With And Tight Fit All Major Building Blocks Brands, GiftBrick Building Base Plates By SCS Large 10x10 Variety pack (2 Green, 2 Grey, 2 Blue) Baseplates (6 Pack) Tight Fit with All Major Brick Sets: The best way to expand your building, this unique 10 pack of building base plates gives you the freedom to create as you wish . Each set is custom designed to be Tight Fitting with all major brands.