OO/HO 16.5mm gauge. There are 6 lengths in total, 5 have a rail length of 1m but the sleeper base is only 940mm long.
OO/HO Flexible Track Concrete Sleeper 914 mm (36") Peco SL-103
Peco SL-302F Flexible Finescale Concrete Track x 4
Peco SL-300F Box of 30 Finescale Nickel Silver Flexible Track
Hornby R621 OO Gauge 970mm Flexible Track - Extra Track Pieces for Model Railway Sets, Model Train Track Pieces - Scale 1:76, Nylon/a
Peco OO Gauge Nickel Silver Flexible Track Job Lot Bundle Used Railway Track x12
