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by John

Prince Rupert's Drops

Prince Rupert's Drops

Regular price $19.99 USD
Regular price Sale price $19.99 USD
Sale Sold out
Tax included.

As a scientific curiosity or demonstration piece, Prince Rupert's drops are not a normal object that would be purchased. However, if you are interested in science and materials engineering, purchasing a Prince Rupert's drop is a fantastic way to learn about the qualities of materials and internal stresses. 

The distinctive shape of the drop and its curious behavior when shattered can make for an engaging conversation piece or a terrific addition to your collection of scientific curiosities. Additionally, it makes an excellent present for someone with an interest in science, or even as a classroom or laboratory demonstration piece.

You should be aware that they are fragile, yet they provide an opportunity to watch and comprehend something not usually seen in ordinary life, and they can also be fun and educational.


John, the proprietor of the internet store, handcrafts each and every Prince Rupert's drop from high-quality glass.

Shipping & Returns

Please allow up to two weeks for delivery of the Prince Rupert's drops, since John handcrafts each one.


A Prince Rupert's drop is approximately 4 - 5 cm / 1.5 - 2 inches.


The seller of the Prince Rupert's drops is NOT liable for any damages the product may cause.

It is the obligation of the purchaser to utilize the product safely and appropriately.

Click here to buy safety glasses.

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Reviews from our clients.

  • "Remarkably precise and elegant. A testament to decades of mastery in glass-making."


    William T.

  • "Exquisite craftsmanship. The artistry in these drops showcases John's unparalleled expertise."


    Alexander H.

  • "A harmonious blend of science and art. Truly an exceptional piece to own."


    Nathaniel L.

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  • What is a Prince Rupert's Drop

    Prince Rupert's Drops have a bulbous body and a narrow, elongated tail, resembling tadpoles.

    They are made by dripping molten glass into cold water, causing the organism to rapidly cool and develop high internal stresses. As a result, the body becomes extraordinarily robust and can endure significant impact, such as hammer blows and, in certain circumstances, bullets.

    However, the droplet's tail is delicate, and if it breaks, the internal pressures are released, causing the drop to explode into glass dust.

    These drops are useful for examining the interior tensions and characteristics of rapidly cooled materials.

  • Care instructions

    The fragile droplets of Prince Rupert should be handled with care to maintain their durability.
    Here are some maintenance instructions:

    1. Handle the drops with care; avoid gripping the drop's tail, which is the most fragile element, and instead handle the drop's bulbous body.

    2. Store in a secure location - Keep the drops in a secure location where they will not be knocked over or vibrated. A display case or box with a soft interior may be a suitable choice.

    3. Dust can accumulate on the drops over time, but you should avoid using water or chemicals to clean them, as these substances might damage the glass.
    Instead, you can carefully remove dust with a soft brush or microfiber cloth.

    If you follow these care guidelines, your Prince Rupert's drops should endure for many years, and you can enjoy learning about and studying material properties and internal stresses.