Help Enable Print 1,000 Hands By Next Month

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The most current files for the Raptor 3D printable hand can be downloaded for free on Thingiverse.
All completed hand kits can be mailed to eNABLE at this address:
Attn: Melina Brown
216 S 8th St.
Opelika, AL 36801.

Is there a preferred scale they want these at? Or should they all be printed at 100%?