Pinlocity
All balls
Hammer Black Widow Urethane

Photo and specs courtesy of Hammer. Reproduced with credit to the maker.

How it moves

Foul lineArrows · 15 ft38 ft · board 102.4° entry
Hockey-stick turn (asymmetric core). Dotted is skid, then the turn, then the roll into the pocket. Estimated from the coverstock, finish, core, and differential for a right-handed bowler with medium revs on a house shot. Lane conditions, speed, and layout move all of this.
  • Photo: Hammer
  • Photo: Hammer
Hammer

Black Widow Urethane

Hook potential4 est.4 of 10, estimated

How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). The maker publishes no number for this ball, so this is estimated from the coverstock, core, finish, and differential.

Coverstock
Urethane
Urethane
Core
Gas Mask
Asymmetric
Factory finish
360/500/500 Abralon
Color
Black
Released
2018-09-19
USBC
Approved 2017-11-01

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.610.0430.011
13 lb2.590.0430.011
14 lb2.500.0560.016
15 lb2.500.0580.016
16 lb2.510.0480.015