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PhiTOP
Key item features
- Elegant Design: Beautiful spinning top with proportions based on the golden ratio.
- Educational Tool: Demonstrates spinning dynamics, electrodynamics, Lissajous figures, and psychophysics.
- Compact Dimensions: Measures 2.5 inches (6.35 cm) tall and 1.5 inches (3.92 cm) wide.
- Solid Construction: Made from solid aluminum with a mirrored finish.
- Extended Spin Time: With practice, spins can last several minutes long.
- Included Platform: Comes with a 3.5-inch (8.89 cm) diameter convex mirror platform.
- Lightweight: Weighs 2.5 oz (70.87 g).
Generated by AI
Specs
- Age range12 years & Up
- Novelty & gag toy typeNovelty Toys
- ColorSilver
- ThemeScience and Math
- MaterialSolid Aluminum
- Dimensions5.50 x 4.25 x 1.50 Inches
Current price is USD$22.50
Price when purchased online
- Free shipping
Free 30-day returns
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Ships to
Arrives between Jun 24 - Jun 27
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Sold and shipped by Vat19
4.270748299319728 stars out of 5, based on 735 seller reviews(4.3)735 seller reviews
Free 30-day returns
About this item
Product details
PhiTOP is a spinning top reimagined.
Part art and part science demonstration, the oblong figure’s proportions are engineered with the golden ratio as measurements for its axes. This ratio results in a kinetic sculpture that mathemagically stands on its end when you twirl it. The dynamic desk toy is made from solid aluminum with a mirrored finish.
Using the included convex mirror platform (and a bit of practice), you can enjoy spins that last several minutes.
Decorate your desk with a sublime spheroid and give PhiTOP a spin!
Part art and part science demonstration, the oblong figure’s proportions are engineered with the golden ratio as measurements for its axes. This ratio results in a kinetic sculpture that mathemagically stands on its end when you twirl it. The dynamic desk toy is made from solid aluminum with a mirrored finish.
Using the included convex mirror platform (and a bit of practice), you can enjoy spins that last several minutes.
Decorate your desk with a sublime spheroid and give PhiTOP a spin!
- Beautiful spinning top
- Height is 1.618 times diameter (Φ, the golden ratio)
- Demonstrates spinning dynamics, electrodynamics, Lissajous figures, and psychophysics
- Dimensions: 2.5” (6.35 cm) tall x 1.5" (3.92 cm) wide
- Weight: 2.5 oz (70.87 g)
- PhiTOP material: solid aluminum
- Also includes 3 1/2” (8.89 cm) diameter convex mirror platform
- With practice, spins can last several minutes long
- Made in the USA
- Ages 3+
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Age range
12 years & Up
Novelty & gag toy type
Novelty Toys
Color
Silver
Theme
Science and Math
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
Warnings
WARNING: “⚠ WARNING: This product can expose you to some chemicals, which is known to the State of California to cause For more information, go to www.P65Warnings.ca.gov.”Similar items you might like
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Customer ratings & reviews
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Showing 1-2 of 2 reviews
Nov 12, 2025
Vanessa
5 out of 5 stars review
Verified Purchase
Entertaining
I love this product! It's beautifully made, spins smoothly, and is mesmerizing to watch. Great quality and fun for both kids and adults. Definitely recommend!
Incentivized Review
Helpful?43AIXP26CN1Y109155074
May 24, 2025
Bonnie
5 out of 5 stars review
Verified Purchase
my grandson requested this for his birthday, and he lo es it!
Incentivized Review
Helpful?43AIXP26CN1Y109155074
