FILAMENT › PLA Silk Tri Filament – 1 kg Roll Image 1 of 2 Image 2 of 2 PLA Silk Tri Filament – 1 kg Roll $19.99 1 kg roll of filament. Choose your available color below. Color: Purple, Orange & Blue Purple, Orange & Green Gold, Blue & Purple Red, Yellow & Blue Black, Gold & Red Gold, Green & Red Purple, Gold & Red Purple, Red & Orange Purple, Red & Blue Add To Cart Added! 1 kg roll of filament. Choose your available color below.