White Strong & Flexible: White nylon plastic with a matte finish and slight grainy feel.
About this Product
This model of 4179 Toutatis, an asteroid 4.6 km long, was constructed from observations by the radio telescope at Arecibo, by Dr. Steven Ostro. More about it is here.
I got the model from Dr. Ostro, but this data is public, so I've made it available for download. Many more asteroid models are linked from this NASA page, search for "3-D" to find them.