# Sun-Star Umi-Gomu "Growing" Eraser - Penguin Pair

**Sun-Star Umi-Gomu "Growing" [Eraser](/collections/erasers) – Penguin Editions** **S4220781**

Turn your mistakes into a cute marine companion! The **Sun-Star Umi-Gomu** is the newest addition to the famous "Growing Eraser" series. Rather than just wearing down, this clever eraser is designed to take shape as you use it.

**Specifications:**

-   **Dimensions (Penguin):** 21mm (W) x 21mm (H) x 21mm (D)
-   **Weight:** 26g
-   **Material:** PVC
-   **Packaging:** Clear PET case

By rubbing away the corners, you can slowly carve the block into a personalized seal or penguin. It is the perfect blend of a functional school supply and an interactive creative tool, making it a fantastic addition to your storefront.

**Key Features:**

-   **Authentic Brand Sourcing:** Manufactured by Sun-Star Stationery. Always list this item under the official Sun-Star brand name to maintain marketplace account health and avoid the suspension risks associated with generic listings.
-   **Interactive Design:** An award-winning concept where the "erasing" process creates a cute animal figure, giving the user a sense of attachment over time.
-   **Two Fun Variations:** Available as a Seal (long type, 1 piece) or a Penguin (cube type, 2 pieces in different colors).
-   **High-Quality Material:** Made from durable PVC for clean, smudge-free erasing without tearing the paper.

## Details

- **Price:** 380.0 JPY
- **Vendor:** Sunstar Stationery
- **Type:** Erasers
- **Tags:** 20260718_PapermindShop, Erasers, Sunstar Stationery

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 380 JPY | In stock |

## Images

- Sun-Star Umi-Gomu "Growing" Eraser - Penguin Pair - Shop all Erasers and Japanese Stationery at Papermind Stationery Shop
- Sun-Star Umi-Gomu "Growing" Eraser - Penguin Pair - Shop all Erasers and Japanese Stationery at Papermind Stationery Shop
- Sun-Star Umi-Gomu "Growing" Eraser - Penguin Pair - Shop all Erasers and Japanese Stationery at Papermind Stationery Shop
- Sun-Star Umi-Gomu "Growing" Eraser - Penguin Pair - Shop all Erasers and Japanese Stationery at Papermind Stationery Shop

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> Source: [Papermind Stationery Shop](https://papermind.shop/products/pss-st-s4220781)
> Updated: 2026-09-03