This filament opens up a great deal of interesting shatter-resistant objects. You can make living hinges with it, and combine it with rigid plastics. Supports have to be clipped away with a knife.
 
Diameter: 1.75 mm, 2.85 mm
Weight: 750 g
Density: 1.18 
Meters per 750 g: 264.248 / 99.632
Weight per meter: 2.84 / 7.53 g
Meters per kg: 352.331 / 132.843