This is a New Reproduction of the Antique Person Supreme Teardrop Pedal, Persons Majestic Mfg. Co. Worcester Mass. This pedal was considered a deluxe pedal, found on your top of the line antique bikes. The 1/2" Denotes the post pedal size. The 1/2" Size fits All 1 Piece cranks. These pedals are perfect for your High end Restoration. A Great Pedal for your Antique Restoration or Custom Schwinn Chopper Project.