GT 357-T "Skeleton" Rails

"This is what you have all been asking for! This is our extremely limited 357-T rail set! The name "Skeleton" has been coined for these rails and it really fits! Here are the specs: 7075 aluminum construction (strongest aluminum available)  3.5 degree nose angle, 7 degree tail angle for extraordinary control.  Open bridge truss design for light weight, improved motor cooling, and improved strength (it also looks fantastic!) Height adjustable, clamping, finned axle carriers for strength, four height position settings, and improved motor cooling."