Signum Pro lists Plasma Pure in 1.18/1.23/1.28 mm, Poly Megaforce in 1.19/1.24/1.29/1.34 mm and Twister in 1.25/1.30 mm. All three official pages checked on October 18, 2026 identify co-polyester.
Plasma Pure is described as made without colour additives; Megaforce is light silver. Twister is yellow and slightly shaped with eight sides.
Keep 1.23, 1.24 and 1.25 mm as distinct package values when switching. Record racquet, reference tension and playing time too: both the product and diameter change in that comparison.
