Compatible Tight: Nice and thick, with precise engineering that fits well with major brand bricks on the market. These base plates are slightly thicker than those of major brands, resulting in less flex, making them ideal for dynamic play when constructions are built on them. Material: Eco-friendly ABS plastic that won't break or bend easily. These durable, flat construction base plates will remain firmly in place as your little builders create their awesome designs. Infinite Creativity: With these base boards, you can build your own dream town, mansion, or even city—letting imagination run wild! Specifications: 32x32 studs, 10" x 10" (25 x 25 cm), large enough to construct big models and scenes. This set is an ideal starter option whether you're building fields, water features, or cityscapes.