{"product_id":"perpetual-motion-machine-puzzle-kit-3d-wooden-metal-ball","title":"3D Wooden Mechanical Puzzle Kit, HS-013 Perpetual-Motion-Style Model","description":"\u003ch2\u003eHS-013 3D Wooden Mechanical Puzzle Kit for Display\u003c\/h2\u003e\u003cp\u003eBuild a mechanical-model-themed puzzle with the HS-013 kit. The existing listing presents a wooden 3D model with a metal-ball kinetic display concept and calls it a perpetual motion machine. Here, perpetual motion describes the model theme, not a device that can run forever without energy. HS-013 is the only model option currently shown on this product.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHS-013 model\u003c\/strong\u003e: The selectable model option identifies the kit you are ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3D wooden puzzle format\u003c\/strong\u003e: Assemble a three-dimensional mechanical-style model as a hands-on project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal-ball theme\u003c\/strong\u003e: The existing listing describes metal balls as part of the kinetic-model concept; the exact number and included components are not independently confirmed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesk display idea\u003c\/strong\u003e: The listing presents the assembled model as a piece for a shelf or desk, without verified finished dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel option\u003c\/th\u003e\n\u003ctd\u003eHS-013\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eWooden puzzle kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDesign theme\u003c\/th\u003e\n\u003ctd\u003eMechanical, metal-ball kinetic display\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this a real perpetual motion machine?\u003c\/h3\u003e\u003cp\u003eNo claim of endless operation is supported. Perpetual motion is used as a model theme; it should not be understood as a source of unlimited energy or movement.\u003c\/p\u003e\u003ch3\u003eWhich model can I select?\u003c\/h3\u003e\u003cp\u003eThe only selectable model option on this listing is HS-013.\u003c\/p\u003e\u003ch3\u003eDoes the model run continuously on its own?\u003c\/h3\u003e\u003cp\u003eContinuous self-powered operation is not verified in the available product information. Do not assume it can move indefinitely.\u003c\/p\u003e\u003ch3\u003eAre glue, tools or batteries included?\u003c\/h3\u003e\u003cp\u003eThe available product options do not confirm a complete component or power-supply list. Check the kit details before assuming particular supplies are included.\u003c\/p\u003e\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\u003cp\u003eFor shipping details and return conditions, please review our \u003ca href=\"\/pages\/shipping-policy\"\u003eShipping Policy\u003c\/a\u003e and \u003ca href=\"\/pages\/return-refund-policy\"\u003eReturn \u0026amp; Refund Policy\u003c\/a\u003e.\u003c\/p\u003e","brand":"Toy Play Nest","offers":[{"title":"HS-013","offer_id":49773121011939,"sku":null,"price":46.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/2770\/5571\/files\/0cde3b2fc43781e3f2102e360ce3c941.jpg?v=1789791684","url":"https:\/\/letusshopping.com\/products\/perpetual-motion-machine-puzzle-kit-3d-wooden-metal-ball","provider":"Let Us Shopping","version":"1.0","type":"link"}