These are clear discs of resin 7mm in diameter and 2mm thick. These were requested by Tolga Ulgar, for him to use on camera ports on 1/32 Spitfires. However I am sure they could be used on many PR types, especially within the RAF. You could also reduce the diameter by using a mask.
They are cast in sets of 4 but I will include 2 sets, enough for 8 ports.
Please do allow the standard 2-3 weeks order processing time.