breakable

Short definition from Wiktionary

Adjective

1. 1
   Able to break or be broken.
2. 2
   Fragile.

Noun

1. 1
   Something that is (easily) breakable.
2. 2
   A set of customized hardware that is part of a drum kit. Breakables typically consist of: the drummer's cymbals including high-hats, the snare drum, the kick pedal and the drummer's stool.