Specification:Model: 2GTMain material: Rubber, AluminumTeeth: 20Groove width:6mmBore: 5mmOverall length: 10MSuitable for: 3D Printer Parts RepRap PrusaFeature:Accurate transmission, without slipping at work, having a constant gear ratioSmooth transmission, a buffer, damping capacity, low noiseHigh transmission efficiency, energy-saving effectEasy maintenance, no lubricantsPacking included:10 x Synchronous wheel1 x Timing belt1 x Wrench,