PETG has almost no curvature

often as many as 3-4 times

This is a PLA filament

25 - 3 mm Accuracy: up to 0

It is made in a practical design with a non-slip handle so it is easy to hold and a safety cap

UltiMaker - Sliding Block assembly 616 - 3, 3 Ext., S3, 2+ Connect Heatbreak PETG has almost no curvatureThis Ultimaker Sliding Block Assembly 616 is an assembled sliding block with timing belt and internal spring. It is a robust and reliable component with a construction that ensures smooth and consistent movement. It is designed for easy installation and maintenance, so you can be up and running in no time. Official Ultimaker spare part. Compatible with Ultimaker S3, Ultimaker 3, Ultimaker 3 Extended and Ultimaker 2+ Connect.