414064 Brand NO Model P-6 Quantity 6 Piece(s)/pack Color White Material Plastic Compatible Models R/C cars， R/C airplane Application R/C cars， R/C airplane， belt drive accessory Other Feature Diameter: 6mm， 13mm， 15mm， 16.8mm， 18mm， 24mm; Belt drive diameter: 2mm Packing List 6 x Pulley