Two sizes: 20mm (fits 50ml bottles and some 100 ml bottles)
24mml (fits 175ml, 200ml and some 100ml bottles)
Please note:The dimensions are the outer surfaces of the lid .. the inner bottles are approx 4mm smaller, so 16mm for the 20ml lids, and 20mm for the 24mm lids. Please measure the bottle without lid carefully. We can't replace these if you order the wrong size!