Size is approx; 5.3 by 4.0 by 1.7cmAdditional product info; Easy to assemble and disassemble, the ‘Large DiaBlock’ for ages 1.5 and up now features Monpoke! Easy to hold even for children aged 1.5 years with a large size! With rounded corners, easy to assemble and remove, perfect for first-time block play! Includes cute character figures of Pikachu, Dedenne, and Ludicolo. Comes with a guidebook listing 10 ways to play, from basic to advanced, to enjoy block play in line with children’s growth. Reliable Made in Japan. Produced at our own factory in Nagano Prefecture. A portion of the sales of this product is donated to support children’s cafeterias.