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100% peace of mind guarantee

15-day free returns and exchanges

If you experience any of the following problems with the product itself within 15 days of receiving it, please contact us as soon as possible. We will resend a new product of the same model and color free of charge.


Target defects (limited to the following cases)

  • Leaking fluid
  • Poor printing/design peeling
  • Missing parts
  • If the model you receive is different from the one you ordered (based on the receipt)

*Response will vary depending on the situation.

*The same model and color can only be used once.


How to apply for a return or exchange

  • Please contact us specifying whether you would like to return or exchange the product, and attach a photo of the receipt and any photos showing the defective part or the incorrectly sent product.
  • We cannot accept returns or exchanges in the following cases:

1) If the returned item does not arrive at our company

2) If the product is damaged

3) Loss of product tag or packaging, etc.

6-month quality guarantee

To ensure our customers' peace of mind, if any of the following defects are found within six months of purchase, we will resend a new product of the same model and color, even if the 15 days have passed.


Target defects (limited to the following cases)

  • Leaking fluid
  • Poor printing/design peeling

*Response will vary depending on the situation.

*Shipping costs are borne by the customer.
*The same model and color can only be used once.


How to request a new product reshipment

  • If you would like a new product re-shipped, please contact us with a photo of the receipt showing the defective part.

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, we prioritize customer peace of mind and satisfaction, offering a 15-day free return and exchange policy and a 6-month quality guarantee for all products purchased. If you have any questions or concerns about our products, please feel free to contact us . For more information, please see our 100% Worry-Free 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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