Big block building same as the Lego type, material ABS, quality very good, colors customizable. It is big type, so that easier for kids to install. There are 9 types of basic blocks with so many different figures like plane, girl, boy, car, wheel, tunnel, animals, farms, playground etc. Buying any combination quantity is ok, for example, 5 kilo grams of bulk 9 types of basic blocks and farm figures. Choose types of blocks you like also ok, we will packed according to your idea. We also provide base board for block building, two types, the one installed by glue, the other installed by screw. The most important, our price very cheap.