Hornby R604 1st Radius Curve $4.50 In stock Quantity: Hornby R604 1st Radius Curve quantity Add to Cart Save SKU: 5010963016043. Categories: HO Track, Trains. Tags: HO Gauge, hornby, OO Gauge, track. Description Additional Information Brand Description 1st Radius (371mm), arc 22.5° Additional information Weight 0.1 kg Dimensions 17 × 4 × 1 cm Brand Hornby