These are BASE PLATES and as such FLAT on the bottom. Agin these are BASE-plates. COMPATIBLE: Fully compatible with all major building block brands
Brick Loot 10 Pack Compatible 5 X 5 inches Baseplates 16 x 16 Studs 16x16 - Variety Base Plate Pack Includes: Grey Green Blue and Tan, 100% fits Lego
Baseplate Bundle - 5 pack of 16x32 - 5 x 10 Base Plates – Brick Loot
MAX Build More Building Bricks Baseplate 10x10 - Major Brick Brands Compatible
UNIVERSAL - Build the ultimate activity table using our compatible LEGO baseplate pieces! Each sheet will work perfectly with other name brand building bricks you know and love. LARGE SURFACE - At 10 x 10 inches, these baseplates provide plenty of space for kids to get creative. The boards are big enough to display several figures, yet small enough to carry around with ease.
[Improved Design] 8 Baseplates, 10 x 10 Large Thick Base Plates for Building Bricks by Brickyard, for Play Table or Displaying Compatible Construction
dspitwod Base Plates 5x10 Variety Baseplates for Brick Block Building Compatible All Major Brands Blue and Green Baseboard with Pin-Hole (6-Pack) : dspitwod: Toys & Games
Baseplate Bundle - 10 pack of 16x16 - 5 x 5 Base Plates
MAX Build More Building Bricks Baseplate 10x10 - Major Brick Brands Compatible
Brickyard Building Blocks Lego Compatible Baseplate - Pack of 4 Large 10 x 10 Inch Base Plates for Toy Bricks, STEM Activities & Display Table - Green, Blue, Gray, Sand : Toys & Games
Baseplate Figures Bricks, Building Blocks, 16x16 Dots, Diy Toys
2pcs Small particle building block base plate 16x16 dots double side DIY Parts 91405 Compatible with Lego Bricks - AliExpress
MAX Build More Building Bricks Baseplate 10x10 - Major Brick Brands Compatible
Brickyard Building Blocks Lego Compatible Baseplate - Pack of 8 Large 10 x 10 Inch Base Plates for Toy Bricks, STEM Activities & Display Table - Green, Blue, Gray, Sand : Toys & Games
Baseplate Bundle - 5 pack of 16x32 - 5 x 10 Base Plates – Brick Loot
LEGO 16x16 Dot Light Tan Plate 5x5 inch 1/3 Thickness Baseplate 91405/Platform - The Brick Bank
Baseplate Bundle - 5-pack of Brick Loot Custom 16 studs x 32 studs - 5 x 10 Baseplates (Base Plates) - Green, Light Green, Light Gray, Dark Gray,
Baseplate Bundle - 5 pack of 16x32 - 5 x 10 Base Plates