Skip to content
TrackPin
Check a price
Menu
Developers

Theme

BAZIC Products 4-Piece Geometry Set with Compass, 144-Case | 4-piece geometry set (12 in ruler, 30/60 and 45/90 triangles, 180-degree protractor) plus a center-wheel compass

Show full title
In stock

Great price

$325.49 is 24% below the $429.89 it normally sells for.

Now
$325.49
Normally
$429.89
Lowest in 108 days
$309.99(Jul 29)
Highest
$429.89
Evidence: Strong108 days tracked3 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $325.49. No account, no newsletter.

Price history

Tracked since Jul 26 · 108 days · 3 price changes

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $429.89
  • 5% or more below normal

How often does it drop below normal?

In the 108 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 17 days. It's below normal right now.

A count of what happened, not a prediction.

More real deals in Industrial & Scientific

See all
Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B09NMWTG2X
Request
curl https://trackpin.co/api/v1/product/B09NMWTG2X \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 19:11 UTC
{
  "asin": "B09NMWTG2X",
  "title": "BAZIC Products 4-Piece Geometry Set with Compass, 144-Case | 4-piece geometry set (12 in ruler, 30/60 and 45/90 triangles, 180-degree protractor) plus a center-wheel compass",
  "image": "https://m.media-amazon.com/images/I/91fMY+Yil5L._AC_SL500_.jpg",
  "currency": "USD",
  "category": "BISS Basic",
  "category_label": "Industrial & Scientific",
  "in_stock": true,
  "price": {
    "current_cents": 32549,
    "reference_cents": 42989,
    "discount_pct": 24.29,
    "is_deal": true,
    "observed_at": 1794423167369,
    "changed_at": 1793844995819,
    "checked_at": 1794423167369,
    "source": "stored"
  },
  "verdict": {
    "label": "great",
    "text": "Great price",
    "pct_vs_normal": 24.29,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Great price. $325.49 is 24% below the $429.89 it normally sells for."
  },
  "listing_claim": null,
  "stats": {
    "min_cents": 30999,
    "max_cents": 42989,
    "avg_cents": 37456,
    "history_days": 108,
    "price_levels": 32,
    "price_changes": 3,
    "distinct_prices": 4,
    "lowest_at": 1785324631092
  },
  "history": [
    {
      "price_cents": 30999,
      "from": 1785324631092,
      "to": 1788912891354
    },
    {
      "price_cents": 42989,
      "from": 1789588408321,
      "to": 1789589437167
    },
    {
      "price_cents": 42989,
      "from": 1790720476442,
      "to": 1793303328971
    },
    {
      "price_cents": 36889,
      "from": 1793320651813,
      "to": 1793827713930
    },
    {
      "price_cents": 32549,
      "from": 1793844995819,
      "to": 1794423167369
    }
  ],
  "last_seen": 1794423167369
}
// … 27 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.