Category Related Items
TR-9291
A bolt and nut is introduced. A spectator screws on the nut. The bolt and nut are covered. A ring is shown and examined. The ring is placed under the cover and instantly the ring is shown to be trapped securely on the bolt. The spectator unscrews the
$25.00
TR-3868
Display a chromed solid cube with two holes drilled through the center. Thread the bolt into the cube, and secure it with the nut. The steel ball is placed in the large hole, on top of the bolt. Slowly, it passes through the cube,
$19.95
|
![]() |
Item Details Item Reviews |
![]() |
|