29mm European Bottle Caps - 100 Count

29mm European Bottle Caps. Do you have bottles from Europe and can't seem to get your caps to clamp tightly? European bottles can be slightly larger at the opening than American bottles, so you will need to use these caps. These caps need to be used with a European bottle capper to accommodate for their larger size.. These are for the large style European bottles only and will not work on American pry off bottles. 100 Count. California Proposition 65 ⚠ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.