All the Beevers models are built from spheres of acrylic plastic, which are joined by polished stainless steel rods. The scale is 1cm = 1Å, a magnification of 100 million (The exception to this is the scale for protein models, which is normally 1cm= 2Å).

The model's description in the price list includes a number (e.g. 276-20-428) which indicates the number of large balls (non-hydrogen atoms), small balls (hydrogen) and rods in each model, and gives some idea of the size and contents of the model.

The colours of large balls are as indicated in the colour chart, unless the colour combination is obviously unsuitable or the customer requests alternatives.