TT Gauge 1/120 40ft Shipping Container Model Railway Accessories in grey. Hollow plastic 3d printed cargo container measures approx 100mm long, 20mm wide, 22.5mm tall. Each order contains two items. Stackable TT Gauge 1/120 20ft Shipping Container Model Railway Accessories in grey. Hollow plastic 3d printed cargo container measures 51mm long, 20mm wide, 22.5mm tall. Each order contains two items. Each order contains 2 of each size