MakerBot 1.75mm PLA Filament (Small Spool, 0.5 lb, Blue Photochromatic)

The 1.75mm blue photochromatic PLA Filament from MakerBot is a bioplastic derived from corn. Light-responsive photochromatic PLA filament is naturally white, and changes color when exposed to ultraviolet rays. When you bring your 3D prints into the sunlight, they'll bloom into subtle shades of blue. It's guaranteed not to have any heavy metals, phthalates, or BPA (Bisphenol A). The small spool provides 0.5 lbs (0.2 kg) of PLA plastic filament.