ソープボックス
1. Gravity racerA gravity racer is a motorless vehicle capable of holding a driver (usually a child) built for the purpose of racing or recreation. They are propelled by gravity and can achieve speeds upwards of 112 km/h (70 miles per hour).
Read “Gravity racer” on English Wikipedia
Read “ソープボックス” on Japanese Wikipedia
Read “Gravity racer” on DBpedia
Read “Gravity racer” on English Wikipedia
Read “ソープボックス” on Japanese Wikipedia
Read “Gravity racer” on DBpedia
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