RARE TO SEE UNUSED! ORIGINALLY DESTINED FOR THE 440-X3 CHASSIS; You are Buying TWELVE (12) Vintage 1996 TYCO Toys Inc., 440-X3 (!!) Chassis MABUCHI ARMATURES ONLY. THEY will fit a TYCO 440 or 440-X2 Style chassis specifically, but can be used in a variety of chassis applications! Torqu'ey Little Guy! if you are looking for a Torque Filled Armature, Here it is; Measuring between 13.5 13.9 OHM, they are certainly well suited to Strong Traction Magnets, a 440-X3 Blue-Arm based Motor, will most definitely, get up go. Very Good Out of the blocks speed! A traditional 440-X2 arm will generally be around 6 OHMs. if zero-100MPH is more important than 150MPH above, this armature could be the one. it will not be bogged down by strong chassis-traction magnets, nor will hills pose any problems. i would imagine its pulling-ability would be pretty good as well. Top end speed, can be increased significantly, by equipping it with a 21 or 22 tooth Crown Gear on the Rear Axle; They are typically sold by the hop up houses like BSRT. Motor heat becomes an issue with the higher RPM's though. Be Aware of Burn out... NO OTHER CHASSIS PARTS INCLUDED; ONLY the ARMATURES ARE INCLUDED IN THIS LISTING. PHOTO IS FOR REFERENCE ONLY. Sold as is. Descriptions are very accurate; No Returns. PLEASE ASK QUESTIONS BEFORE YOU BUY IF YOU ARE UNSURE. We ship promptly professionally. We happily combine orders refund any excess s/h immediately upon shipping. We can always provide tracking. I charge $1 for expert handling/packaging, actual shipping. We ship out of the country almost daily. Please refer to our feedback, social media or time selling HO slot cars for assurances of a good honest deal. Happy motorin' thanks S'lots from Bob at Slot Car Central in SYR. We Know H.O.