✔ 36-38-40 each 4. Dynes/cm Calibration – Ideal for testing plastic film surface energy

✔ 12 Pens per Box – Perfect for repeated quality control checks

✔ Reliable Adhesion Testing – Helps ensure proper ink, coating, and lamination performance

✔ Made in USA – Consistent manufacturing and dependable results

✔ Essential QC Tool – Used in printing, packaging, and converting industries