"Duncan World Class"@en . . "Fixed metal axle"@en . "The World Class is a fixed axle yo-yo first released by Duncan in 1981."@en . "N/A"@en . . "The World Class is a fixed axle yo-yo first released by Duncan in 1981."@en . . . "Red"@en . . . "1981"^^ . "H-Shape"@en . . "Plastic"@en . "N/A"@en . . "Starburst"@en . . "World Class"@en .