20-Minute Timer Mechanical Model Kit
20-Minute Timer Mechanical Model Kit
20-Minute Timer Mechanical Model Kit
20-Minute Timer Mechanical Model Kit
20-Minute Timer Mechanical Model Kit

20-Minute Timer Mechanical Model Kit

Regular price
$39.90
Sale price
$39.90
Shipping calculated at checkout.

Watch it in action.

The 20-minute Timer has a unique roller pendulum and a lever for amplitude adjustment on its backside. It is powered by the pull of a simple rubber band, and this can be used to set the alarm on this unique piece. The alarm gives a pleasant pop sound after 20 minutes when it is set.

Finished size: 6.9 x 3.3 x 10 in

Number of parts: 107
Level: Hard
Assembly Time: 3-4 hours