{"product_id":"koa-koa-make-a-hand-crank-doorbell","title":"KOA KOA Make a Hand Crank Doorbell","description":"\u003cp\u003eKoa Koa Make a Hand Crank Doorbell STEM DIY Kit from France lets kids make their very own wooden hand-crank doorbell for their room, complete with gears, bike bell, screws, washers and nuts. They'll learn how gears work, along with the crank, rack, pinion and cogwheels. Once it is built, turn the crank to watch the gears start to move and push the hammer that hits the bell. The doorbell can be painted and there are four holes on the base so that it can be screwed to a door. \u003c\/p\u003e\n\u003cp\u003eSuitable for age 6+\u003c\/p\u003e\n\u003cp\u003eMaterials: Wood, bell, plastic, elastics\u003c\/p\u003e\n\u003cp\u003eProudct Box Size: 27cm x 18cm x 5cm\u003c\/p\u003e","brand":"KOA KOA","offers":[{"title":"Default Title","offer_id":39987915948214,"sku":"KOA912090","price":349.0,"currency_code":"HKD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0517\/4312\/9782\/products\/KOA912090_1.jpg?v=1624521406","url":"https:\/\/www.cartoleriacolombo.xyz\/zh\/products\/koa-koa-make-a-hand-crank-doorbell","provider":"Simply Toys HK","version":"1.0","type":"link"}