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

How it moves

Arcing turn (symmetric 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.

Hammer

Black Widow Limited

Name: Hammer Black Widow Limited
Brand: Hammer

Discontinued

Hook potential6 (est.)6 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: Semtex Pearl; Reactive pearl
Core: Gas Mask
Factory finish: Not listed
Color: Red / White / Blue
Released: 2015-11-01
USBC: Approved 2015-10-22

Weights and specs

Weight	RG	Differential	Int. diff
15 lb	—	—	—

Surface

Coarse grit

Coarse and fine

Fine grit or polish

Coarse surfaces grip through oil and hook early; fine or polished surfaces skid longer and hook later. Surface changes over games, and a pro shop can take any ball either way with a pad.

Reviews on YouTube

Dean Champ · 2015 · Hammer Black Widow Limited - Ball Review

Boatkung6395 · 2015 · review Hammer Black Hammer and Black Widow Limited bowling ball

CheapBowlingBalls.com · 2015 · Hammer Black Widow Limited Bowling Ball Review

Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.