10-15-20 right-angle prism optical K9 glass reflection prism 45-degree internal reflection coating black
Quick answer
Is $5.29 a good price for 10-15-20 right-angle prism optical K9 glass reflection prism…?
No: at $5.29 it is 24% above the typical price of $4.25 that DipScout measured over the last 5 days. The lowest price we recorded since Oct 23, 2026 was $4.25.
$5.29
Today it costs $5.29 on AliExpress. Since Oct 23, 2026, when we started tracking it, it ranged from $4.25 to $5.29. By our price history, it is not on sale right now.
No drop compared with what we observed over the last 5 days.
View on AliExpressThe price above is the last recorded reading, not a live checkout lookup.
Price history
Today$5.29highest ever seen
Lowest$4.25Oct 23 to Oct 26
Highest$5.29since Oct 26
Tracked since Oct 23 · 1 changeHover over the chart to see each price.Tap the chart to see each price.
See every price change
| When | Price | Change |
|---|---|---|
| Oct 26, 02:06 UTC | $5.29 | +24% |
| Oct 23, 02:06 UTC | $4.25 | start |
| Store | Precision Light Prism Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Tools › Measurement & Analysis Instruments |
| Recorded readings | 2 |
| First seen | 10/23/2026 |
| Last reading | 10/27/2026, 3:17:38 AM UTC |