Shimano Deore Tandem Crankarms Captain 175mm NOS cranks 175 square

Shimano Deore Tandem Crankarms Captain 175mm NOS cranks 175 square taper. I have several of these new captain crank sets with 175mm length. Left hand drive. I also have the 110mm BCD 38 tooth chainrings that came with these. Let me know if you need the ring and/or chainring bolts. $8 priority shipping. Just $1 more fore each additional set. I am down to my last 2 sets of these and these last 2 have some oxidation and don't quite have the same mirror finish as shown on n the photos.
Includes original dust caps.
People have asked how these are different from normal Deore DX mountain bike cranks and if they can run them on a normal bike. You could run them on a normal bike, but I wouldn't recommend it. To do so, the left pedal would have to go on the right on the right one on the left. The poor fellow who goes to take the pedals off could have a bad day. The left pedal threads onto the drive side arm and the right pedal threads onto the no-drive side arm. Also, the driveside arm is not threaded for a small chainring.  If you want to make a complete tandem crankset, you just need two of these captain cranks sets, plus a normal 175mm drive side crankarm with a compatible square taper.