3" wide tread set with solid wheels. Two idlers and two drive wheels. 3" wide rubber tread set with black UHMW wheels.  Center to Center is about 18.5 inches.  These track and wheels were intended to be used with our LT and LT-F robots.  The pitch of the track is 12mm.   There are 120 pitches per track. The tracks are made of rubber and have big external cleats as pictured.   The wheels are about 6.5 inches in diameter.  The drive wheels need grooves cut into them or rubber epoxy to grab the 12mm pitch teeth on the inside of the track.  There are also two idlers, that do not have teeth on them.  We decided not to use these because the manufacturing process was not repeatable enough, sometime they come in 18" center to center, other times 19 inches and that would not work with our predesigned chassis (if building your own "one off" chassis, you can fit these tracks up with no issues).  We are selling them as is.    This is a picture of the same track and wheels after we modified the drive wheels with teeth and hogged out the middles for less weight.

Included:

• 2 tracks
• 2 drive wheels
• 2 idlers