This is an FK3d 3D printed item, using a fine ABS like resin and is for a set of 20 torpedo vents. O GAUGE OVAL TORPEDO VENTS (x20) - LNER COACH 7mm Scale. You simply need to remove them from the base and they are ready to paint / fit.
O GAUGE FK3d WAKEFIELD LUBRICATOR (two supplied) - LMS CRAB / MOGUL - 7mm Scale
O GAUGE FK3d BR HYMEK CLASS 35 TRIANG BIG BIG TRAIN BUFFER SET upgrade 7mm Scale
O GAUGE FK3d BR Mk2 COACH DOOR (x24) for TRIANG BIG BIG TRAIN upgrade 7mm Scale
OO GAUGE FK3d LNER COACH ROOF OVAL TORPEDO VENTS (x24) - 4mm Scale
BR LIMA CLASS 33 CAB INTERIOR FK3d UPGRADE SET / KIT (Pair) (O Gauge 7mm scale)
ETS O GAUGE TRAIN SET No 132 0-6-0T 310.001 WOODEN BOX SET WITH AN OVAL OF TRACK