ITEM NAME:3Dprinter synchronous wheel 2GT-16 tooth printing part synchronous belt pulle-3C Descriptionï ¼Å¡ Type:Belt Pulley Teeth:16 Tooth Teeth Inner diameterï ¼Å¡ 5mm Height 14mm External diameter 11mm Package Includeï ¼Å¡1* Belt Pulley.Type:Belt Pulley. Teeth:16 Tooth Teeth.