Walthers Mainline 910-20665 HO Scale EMD SW7 Phase I Chessie System C&O 5235 DCC Sound Brushed - 20T The UGEARS Mechanical Multiplier is

The UGEARS Mechanical Multiplier is a fun wooden 3D puzzle based on a children's toy

5mm Hex Wrench

Hi Performance / Low Cost

Wide-body footprint for tracking stability

Walthers Mainline 910-20665 HO Scale EMD SW7 Phase I Chessie System C&O 5235 DCC Sound Brushed - 20T The UGEARS Mechanical Multiplier isWalthers Mainline 910 20665 HO Scale EMD SW7 Phase I Chessie System C&O 5235 DCC Sound From coach and freight yards to primary power for shortlines, the WalthersMainline SW7 is a perfect choice for your HO layout! Delivering 1200 horsepower from an updated 567A prime mover, the prototypes proved popular with both railroads and industrial lines, with nearly 500 produced from 1949 to 1951 with several still in service, each layout ready model is packed