# Kai Fighter #70721 — resale value

Source: JunkPal price guide — https://junkpal.ai/products/kai-fighter-70721-lego-ninjago-lego

**Kai Fighter #70721** is worth about **$15** loose, based on real closed eBay sales. Sealed or new examples sell for around **$155.25**.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/kai-fighter-70721-lego-ninjago-lego

## Value by tier

| Condition | Value (USD) |
| --- | --- |
| Loose | $15 |
| Complete (CIB) | $50 |
| Sealed (new) | $155 |

Values are medians of real closed eBay sales, updated 2026-08-14. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

Recent movement: Steady.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%2520Ninjago%2520Kai%2520Fighter%252070721%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DLEGO%2520Ninjago%2520Kai%2520Fighter%252070721%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 5702015121064 |
| Brand | LEGO |
| Theme | LEGO Ninjago |
| Set number | #70721 |
| Release date | January 1, 2014 |

## Kai Fighter #70721 (LEGO Ninjago) resale value

A loose Kai Fighter #70721 set runs around $15, a complete copy (all pieces + box + instructions) about $50, and a factory-sealed box commands $155.

### What drives the price

Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.

## FAQ

**What is the best value for Kai Fighter #70721?**

The best value depends on your needs; loose is the most affordable at $19, while sealed offers the highest investment potential at $169.

**How much is the complete in box version worth?**

The complete in box (CIB) version of Kai Fighter #70721 is currently listed for $49.

**Is the sealed version worth the high price tag?**

Yes, the sealed, new version is listed for $169, reflecting its pristine, unused condition.

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Full price guide: https://junkpal.ai/products/kai-fighter-70721-lego-ninjago-lego
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-08-14, based on real sold listings (junkpal.ai)"