Timer for 20 minutes with the bell;Model for self-assembly without glue (details ready and simply removed from the board);Going for instructions;Lift the lever and start the timer to the desired time;Work second and minute hands.

• UGEARS TIMER Mechanical 3D Wooden Puzzle Constructi on DIY Set

UGEARS TIMER Mechanical 3D Wooden Puzzle Constructi on DIY SetUkrainian Gears