MG Chemicals Blue PETG 3D Printer Filament, 1.75 mm, 1 kg Spool Blue PETG 1.75 mm diameter, PETG Filament, 1 Kg (2.2 lbs) net weight Recommended Print Temperature 210C - 240C (410F - 464F) Vacuum Sealed With Desiccant, in resealable bags Spool Diameter: 7.75" - Spool Width: 2.5" - Spool Hub Diameter: 3.5" - Hub Hole Diameter: 2.125"