These drama blocks can be used for many different things, for example: Big furniture, small stage, props in acts. These blocks are specially made from EPS foam. This is a very light but strong material. Problems with the old blocks included safety hazards because of the chipping wood and loose screws. These blocks are made from wood but are also coated with soft carpet, which gives it its sturdiness and comfortable feel. Since these blocks will be new, there are no worries of loose screws or other safety hazards http://www.theatrequip.com.au/products/drama-boxes/