This fits your. Make sure this fits by entering your model number. UGears Mechanical Models are self-propelled, mechanical wooden model assemble kits. The Timer is one of Ugears most original, exquisite and refined models. This elegant mechanical device can count down from 1 to 20 minutes. Just set the Timer’s rubber band powered hand, wind the alarm, and watch the delightful clockwork ticking away in a relaxing rhythm. This beautiful meditative timepiece adds sophistication to any room! 20 minutes Timer with an alarm mechanism is one of our most exciting models. If the alarm mechanism is set when the time runs out, you will hear a pleasant sound. The Timer has a special roller pendulum and a lever for amplitude adjustment on its backside. It is powered by the pull of a simple office rubber band. This model went through a great deal of improvements and refinements to become this beautiful piece of machinery that anyone can put together for their delight. Complete Your Set: Mechanical Theater; Dynamometer; Mechanical Box Number of components: 107 Estimated time of assembly: 3-4 hours These designs are inspired by real-life mechanisms. The team believes that building these beautiful working models should be fun. They have dedicated their engineering know-how, meticulous product testing and quality control to a single goal: Ensuring that the models provide an engaging and rewarding experience for the whole family.