| Shore
A | Shore
D | Rockwell
M | Material |
| 30 | | | Art
gum eraser | | 40 |
|
|
Pink
Pearl eraser |
| 50 | 15 | | Rubber
stamp | | 60 |
|
|
Pencil
eraser |
| 70 | 30 | | Rubber
heel | | 80 |
|
|
Rubber
sole |
| 90 | 45 | | Typewriter
roller | | 100 |
55 |
|
Pipe
stem |
| | 74 | 0 | Textbook
cover | | |
78 |
32 |
Douglas
fir plywood |
| | 82 | 63 | |
| |
86 |
95 |
Hardwood
desktop |
| | 90 | 125 | Glass
or formica | |
