The COP-Combo is a filament combo to meet all your most used copolyester needs.Including each one spool of Basic COP and DuroCOP Basic COP Technical Data: Density: 1,27g/cm^3 Tensile Strength at Yield: 26MPa Elongation at Yield: 4,30% Tensile Strength at Break: 48MPa Elongation at Break: 58,00% Flexural Modulus: 1880MPa Flexural Strength: 64MPa Izod Impact Notched at 23°C: 126kJ/m^2 Izod Impact Notched at -40°C: 57kJ/m^2 HDT A: 70°C Print Settings:Nozzle: 230-255°CBed: 60-80°CCooling: can take quite a lot DuroCOP Technical Data: Density: 1,18g/cm^3 Tensile Strength at Yield: 43MPa Elongation at Yield: 7,00% Tensile Strength at Break: 52MPa Elongation at Break: 210,00% Flexural Modulus: 1575MPa Flexural Strength: 64MPa Izod Impact Unnotched: No Break Izod Impact Notched: 86kJ/m^2 HDT A: 100°C Print Settings:Nozzle: 250-280°CBed: 100-110°CCooling: lower end General Info: 1,75mm Filament Diameter750g Net Filament Weight each~240g Spool Weight