Caffeine Necklace Structural Formula Necklace

The theme is "Make science fun and accessible!" Caffeine is a popular item in the science accessory series! This necklace also goes well with the Caffeine Acrylic keychain. The necklace end is also carefully designed. Necklace is 50cm + 5cm adjuster (adjustable) Can be changed to a strap. --- ☆Material Metal (please be careful if you have allergies) ☆Size The necklace chain is 50cm + 5cm adjuster. ☆Parts change Necklace chain as a strap Shorten the necklace chain etc. can be changed. Please contact us in the comments section. --- *Since metal is used in the parts, please refrain from purchasing if you have any concerns about allergies. *As these are handmade items, the size and shape of each item may vary slightly. Thank you for your understanding. *When natural materials are used for parts, there will be individual differences in size, shape, color, and pattern.