These round plastic replacement watch crystals arrive in a nice little box of 10. Each crystal is neatly wrapped in special tissue so that the crystal is free of scratches. SilverCrow's watch crystals can be used for so very many projects! Glue two together, use individually, reverse collage the concave side, etc., etc., etc.!
Sizes range from about 19mm to over 30mm. Each box contains a different size crystal. All ten crystals in your box will be the same size! Crystals are not measured in millimeters, they are measured in watchmaker's sizes, so it is hard for us to specify a particular millimeter size. Please let SilverCrow choose a box for you.