6 model

Free

25mm calibration cube with empty top

Thingiverse

Free

25mm Cube

Thingiverse

Free

25mm penny & arch calibration cube

Thingiverse

Free

25mm Test Cube With Stairs

Thingiverse

Free

25mm x 25mm x 20mm Calibration Cube

Thingiverse

Free

Foolproof Calibration Cube 25mm

Thingiverse