ZYLTECH Filament / ZYLtech Dual Color Silk Series 3D Printer Filament 1.75mm 1 kg 2.2 lbs Sale Price: $20.95 Original Price: $23.95 Sale Dual Gradient Silk Series 3D Printer Filament 1.75mm 1 kg 2.2 lbs Sale Price: $20.95 Original Price: $23.95 Sale