All 18mm. Just pay shipping (CONUS). YOLO takes them. Then PM me your address so I can let you know the shipping cost. From left to right: ZuluDiver (from Watch Gecko), nylon, blue with red stripe, satin hardware, 300mm. ZuluDiver (from Watch Gecko), nylon, green with orange stripe, satin hardware, 300mm. Geckota (from Watch Gecko), nylon, navy/green/red (Bond style), satin hardware, 300mm. Maratac (from CountyComm), full grain leather, black, satin hardware, 280mm. Maratac (from CountyComm), full grain leather, brown, satin hardware, 280mm. Maratac (from CountyComm), nylon, black/green/red, black hardware, 260mm.