use this to keep your book open with one hand
R2 has a .12" hole for a book mark / keychain
Also the thumbhole is reshaped a bit for a tight fit (on me)
similar to
http://www.etsy.com/ca/listing/171764689/book-holder-cherry-wood-delivery-in?ref=related-0
| bookholderthumb.stl | 3.0MB | |
| bookthumb.FUN | 1.2MB | |
| bookthumbr2.FUN | 1.4MB | |
| bookthumbr2.stl | 3.0MB |
