10/26/2026
ROTO GRIP PERFECT GEM – PERFECTION REDEFINED!
A legend has evolved! The Roto Grip Perfect Gem takes everything bowlers loved about the original Gem and delivers a cleaner, stronger, and more continuous reaction on medium-heavy to heavy oil.
At its heart is the redesigned GEM A.I. Asymmetric Core, engineered to create massive flare, powerful midlane motion, and maximum energy transfer through the pins.
Wrapped around it is the all-new E-R1 Solid Reactive coverstock, a nano-free formula finished at 2000 grit. This combination clears the front of the lane more efficiently while delivering an aggressive, continuous finish downlane without burning up too early.
The Specs (15 lb):
Core: GEM A.I. Asymmetric
Coverstock: E-R1 Solid Reactive
RG: 2.49
Differential: .057
PSA: .017
Finish: 2000-Grit Abralon
Conditions: Medium-Heavy to Heavy Oil
More length. More continuation. More power.
The Perfect Gem isn’t just another addition to the collection. It’s the evolution of a legend, built to shine when the oil gets heavy!
BOWL THEORY PRO SHOP
Inside Armadilla Lanes II
10055 Fuqua St, Houston, TX 77089
Phone: (346) 406-4961
Website: www.bowltheory.net