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100% peace of mind guarantee

14-day unconditional return and exchange guarantee

If you are not satisfied with your purchase for any reason (including customer preference or product defects), please feel free to contact us within 14 days of receiving your item. We will be happy to arrange a free return or exchange.


How to request a return or exchange


If you wish to return or exchange an item, please provide the following:


  • Please specify whether you would like a "refund" or an "exchange" when you contact us.
  • A photo of your receipt (for in-store purchases) or your order number (for online purchases)
  • A photo of the product
  • If the item is defective, a photo of the defective area

Important Notes


  1. For returns or exchanges due to customer preference, the customer is responsible for shipping costs.
  2. Refunds for in-store purchases cannot be processed online. If a refund is needed, please visit the store where you made the purchase.
  3. If you paid with a transportation IC card, refunds cannot be processed either online or in-store.
  4. The return/exchange service is limited to one time per order.
  5. Due to the inability to verify the authenticity of third-party payment information, only store-issued receipts are valid for in-store purchases.
  6. For returns or exchanges other than defective products, the product must be in a resalable condition.
  7. The appropriate course of action will be determined based on the specific situation.

180 Days Free Exchange

To improve customer satisfaction, even if 14 days have passed, if any of the following defects occur within 6 months of purchase, we will replace the product with a new one.


Applicable defects (limited to the following cases)

  • Liquid leakage
  • Print defects/design peeling
  • Detachment of parts

How to apply


If you wish to exchange the product, please contact us with the following:


  • Photo of the defective part
  • Receipt photo (for in-store purchases) or order number (for online purchases)

Important notes


  1. Shipping costs will be borne by the customer.
  2. The exchange service is limited to one time per order, and only exchanges for the same design and model are possible.
  3. Since we cannot verify the authenticity of third-party payment information, only store-issued receipts are valid for in-store purchases.
  4. The appropriate response will be determined based on the situation.

* Sale items are not eligible for the above after-sales service.

* Products other than cases and mobile batteries are only covered by the 14-day warranty.


Common cases that are not quality defects

Causes of air bubbles in quicksand cases and how to deal with them

▸ Cause
The liquid (vegetable oil) used inside the case has the property of expanding and contracting due to temperature and air pressure changes. Therefore, air bubbles may appear in the following situations:
- When charging with the smartphone attached
- When the atmospheric pressure changes significantly due to international transport, etc.
These are natural physical phenomena in liquid structure.

▸ What to do
- Please avoid using the case while charging (air bubbles will become larger and more visible).
- If you notice any air bubbles, refrigerating the case for a few hours will allow the temperature to stabilize and the bubbles may become smaller or disappear.

Causes and solutions for quicksand case parts becoming stuck

▸ Cause
Due to the irregular flow of the liquid inside, decorative parts may overlap and become stuck temporarily. This is a normal characteristic of the liquid float specification.

▸ What to do
1) Remove the case from your smartphone
2) Gently tap the case while shaking it gently. *Please be careful not to use excessive force as this may cause damage.
3) The vibration loosens the parts and they gradually return to their original position.
Here's a video with easy-to-understand instructions:
https://youtube.com/shorts/14JkDkOmn6U?si=AsGsK8EgCc7Av0mv

100% peace of mind guarantee

At cas:pace, for all products you purchase, we prioritize your peace of mind and satisfaction, offering a "14-Day No-Questions-Asked Return/Exchange Guarantee" and "180-Day Free Exchange". If you have any questions or requests regarding our products, please feel free to contact us. For more details, please refer to the 100% Peace of Mind Guarantee page.

What is cas:pace?

cas:pace (shell space) is a visual fashion brand from Tokyo.

We question the "ordinary" objects and designs that fill our daily lives, and propose mobile lifestyle goods that can be enjoyed as fashion items through story-telling visual expressions and a genderless worldview that respects diversity.

The "shell" in the brand name represents an independent space, a shelter that protects one's individuality,
We will deliver products that will accompany you in your daily life, embracing, expanding, and filled with potential.

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