NANOGY 95 Compound Cup-Stack Carbon Nanotube achieves great repulsion combined with high durability. Suited for players looking for speed and durability. Highlight 1. Durability 2. Medium Feeling Material 1. Core: High-Intensity Nylon Multifilament 2. Outer: Special Braided High Polymer Nylon Fibre 3. Coating: Compound Cup-Stack Carbon Nanotube