They are just the basic standard shapes: box, cone, cylinder, pyramid, sphere, plus a few fun shapes: a heart and clover. I also included round and box wires for your wire and string-type needs. Each shape is sized down to 2, 3, 4, and 5 times smaller than standard prims. Wire shapes also have a 10x size and are only smaller on the x and y axis (so they can stretch to a full 10 meters on the Z axis).
They seem to hold better than other sculpty nanoprims that tend to deflate or grow large spikes at a distance. These can deflate but you would need to disable your camera constraints to zoom out far enough, even on the default viewer settings.
A demo is also available for viewing at my main shop in Garda: http://slurl.com/secondlife/Garda/240/158/73
For those of you who prefer SLX, you can also get it here: http://slexchange.com/modules.php?name=Marketplace&file=item&ItemID=772838
Enjoy
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