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Ebonite Crush/R

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

How it moves

Foul lineArrows · 15 ft40 ft · board 83.9° entry
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.
Ebonite

Crush/R

Hook potential6.5 (est.)6.5 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
Crush/R
Reactive solid
Core
Crush/R
Symmetric
Factory finish
Sanded
Color
Not listed
Released
1993-01-01
USBC
Approved 1993-01-01

Weights and specs

WeightRGDifferentialInt. diff
15 lb2.550.015—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
Sanded. Bites through heavy oil, so the ball reads the lane early and hooks sooner. Sanded balls (500 to 1000 grit) live here. Surface changes over games, and a pro shop can take any ball either way with a pad.

Balls like this

Same coverstock and core type; the closest company for this ball in a bag.