Kadee 321 - #321 HO Scale Between-the-Rails Code 100 Delayed-Action Magnetic Uncoupler (2pcs)Informationg from Kadee's website: #321 Between the Rails Code 100 Delayed Action Magnetic Uncoupler HO Scale HO Scale MAGNE MATIC #321 Between the Rails Code 100 Delayed Action Magnetic Uncoupler HO Scale Delayed Magnetic Uncoupling Place this handy "delayed action" Uncoupler anywhere on a straight track segment between the rails. Ready to mount on top of ties with Code 100 rail. Cut out ties if mounting Code 83, 70, 55 or 40 rail. Track not included

1 sheet of laser cut topping stones

F2 - Brake (Non-Latching)

(20) Pair #634 Centering Spring NO

Ideal for reducing friction of moving parts and bearing surfaces

Snap Switches or Slow Motion Machines

Works for all scales

This multi-use product is non-toxic

Each F7 Freight Train set includes one of Kato's EMD F7A locomotives

The #156 features an even longer-lasting and more reliable design

100" ID Bushing/Sleeves

Complete oval with 6" cuves and 124mm (4 7/8") straight pieces

The #142 is interchangeable with the #22 and most manufacturer's Medium Overset OEM knuckle couplers