These Pendulum Balls are used in pendulum apparatus for displaying collision forces, motion and mass impact between each ball in demonstrations.
| Order# | Description |
| PNBP01 | 1" Diameter Plastic Ball |
| PNBA01 | 1" Diameter Aluminum Ball |
| PNBS01 | 1" Diameter Steel Ball |
| PNBP75 | 3/4" Diameter Plastic Ball |
| PNBA75 | 3/4" Diameter Aluminum Ball |
| PNBS75 | 3/4" Diameter Steel Ball |
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