1, after strict quality testing, with high purity, high precision, environmental protection, non-toxic and degradable characteristics 2, Tolerance within 0.02mm, uniform extrusion during printing, no plugging, limited improvement of printing efficiency 3, The melting point is stable without bubbles 4,suitable for low temperature printing pen colour:Orange/Pink/Black/Red/Yellow/Green/Light Green/Light Purple/Dark Blue/Sky Blue/Silver/Purple/White Material: PCL size:Length:5M Filament:1.75mm Package Contents: 1 x Filament Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.