25x25x80mm Triangular Prism BK7 Optical Prisms Glass Physics Teaching Refracted Light Spectrum Rainbow Children Students Present
$2.25
Today it costs $2.25 on AliExpress. Since Oct 21, 2026, when we started tracking it, the price hasn't changed. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for 1 day; confirming a drop takes at least 3 days.
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Price history
Today$2.25steady
The price hasn't changed once since Oct 21, when we started tracking it.
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| Store | HUILEY Official Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Tools › Measurement & Analysis Instruments |
| Recorded readings | 1 |
| First seen | 10/21/2026 |
| Last reading | 10/22/2026, 6:48:05 PM UTC |