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 BR HYMEK CLASS 35 TRIANG BIG BIG TRAIN BUFFER SET upgrade 7mm Scale
O GAUGE FK3d BR HYMEK CLASS 35 FUEL TANK for TRIANG BIG BIG TRAIN upgrade - 7mm
O GAUGE FK3d LNER 1ST CLASS RESTAURANT CAR TABLE LAMPS x6 - NER 7mm Scale
O GAUGE FK3d LMS / GWR ROOF SHELL VENTS (x20) - COACH 7mm Scale
O GAUGE COACH OVAL HEAD BUFFERS
OO GAUGE FK3d LNER COACH ROOF OVAL TORPEDO VENTS (x24) - 4mm Scale