1 LEGO Plate 16X16 part 91405 Baseplate/building platform pick your color | eBay
LEGO 16x16 Dot Green Plate 5x5 inch 1/3 Thickness Baseplate 91405/Platform Piece - The Brick Bank
Amazon.com: 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 : Toys & Games
Amazon.com: LEGO Parts and Pieces: Dark Gray (Dark Stone Grey) 16x16 Studs (4.8 inches by 4.8 inches) Plate x1 : Toys & Games
Baseplate 16x16 You Pick the COLOR 100% Genuine LEGO® - Etsy