Lionel 681954 O 072 o72 Wye Remote/Command FasTrack Switch

Flawless non-derailing function allows trains to keep running regardless of switch position Auxiliary power and TMCC™ (ASC and SC-2) terminals are conveniently located under the roadbed base making all connections invisible from above Realistic illuminated switch lantern Lantern base is interchangeable can move to the right or left side Dimensions Length 12"/22 1/2-Degree Wye w/ removable 1 3/8" extensions Track curves are measured from CENTER RAIL TO CENTER RAIL. The actual area the track takes up is a few inches more to include the track bed. O-31 Curves need 8 curve track pieces for a complete circle – Approximate area will be 3 feet O-36 Curves need 8 curve track pieces for a complete circle - Approximate area will be 3.5 feet O-48 Curves need 12 curve track pieces for a complete circle - Approximate area will be 4.5 feet O-60 Curves need 16 curve track pieces for a complete circle - Approximate area will be 5.5 feet O-72 Curves need 16 curve track pieces for a complete circle - Approximate area will be 6.5 feet O-84 Curves need 32 curve track pieces for a complete circle- Approximate area will be 7.5 feet O-96 Curves need 32 curve track pieces for a complete circle- Approximate area will be 8.5 feet