All filaments are 1Kg, 1.75mm diameter. Get in touch with us for 3mm Strength/Flexi/Durability- High/low/medium Ease of use- High Print Temp- 190°C – 220°C Print Bed Temp.- Not needed Shrinkage Warping- minimal Diameter- 1.75mm & 2.85mm Applications- models, toys, prottype containers Color- Blue