Purple Pearl Urethane 78D

by Hammer
Hammer Purple Pearl Urethane 78D bowling ball photo

Urethane Pearl 78D Coverstock

Super LED Symmetric Core

16 lb 15 lb 14 lb 13 lb 12 lb
RG 2.583 2.632 2.634 2.601 2.624
Diff 0.034 0.034 0.034 0.04 0.04
Length 89% 120% 121% 101% 115%
Flare 42% 42% 42% 56% 56%


  • Factory Finish:
    500 Siaair Micro Pad
  • Release Date:
    March, 2026

From Hammer:

Introducing the Purple Pearl Urethane 78D. Built around the all-new Super LED core, this design more than doubles the differential and flare potential while maintaining Hammer’s proven thick-shell technology. The result is a reaction closer than ever to the infamous Purple Pearl Urethane—now delivered in a harder 78D formulation.