This neoprene timing belt is perfect for hobby 3D printers, camera sliders, or other linear motion systems. It is open-ended so that each end can be attached to the printer head, camera slider, etc. 
The Makeblock Timing Pulley are additionally recommended.   
 
 
Features:
Timing Belt Standard: MXL
Pitch: 2.032mm 
Width: 6.6 mm
Material: Neoprene
Length: 2m