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First Level Base Kit - 3rd & 4th Radius 'OO' Gauge

SKU 3rd & 4th Radius Helix Base Kit OO Gauge-14

This kit gives you your first complete turn on your double-track helix (from baseboard to level one) it rises to 76mm, resulting in a gentle approximate 1:50 gradient. Designed to suit 3rd & 4th radius set track Geometry. The kit is supplied with everything required to give you a full 360° turn including comprehensive assembly instructions.

Any additional level will require the 3rd & 4th radius OO gauge riser kit.