Piper tradition, hollow core technology. This line up is phasing out in 2024, making room for an entirely new hollow tech by Neal Piper.

• Core: Double X Blade, hollow tech
• Formula: Insane-a-Thane
• Dual durometer, banded
• Sold as each
• Packed: 8 packs
• Size: 110 | 100
• Hardness F2 / 84a