All 3 have never been used and come on the original boxes and packaging. All 3 are for 0 gauge track.
The Crossover is 90 degrees, model 6-5540.
The Right Hand Remote Switch is model 6-23011.
The Left Hand Remote Switch is model 6-23010. Both feature options to vary distance between track lines 8 5/8”, 5 1/4” or 4 1/4”. Both have a lighted lantern and controller, lantern housing mounts either side, electronic and mechanical non-derailing, rings on either variable or fixed voltage, detailed roadbed, remote or manual control and short curve & straight track sections.