Materials

What is silicone?

Silicones are polymers, which are large molecules composed of many repeated sub-units. These polymers are made up of siloxane – a chain of alternating silicone atoms and oxygen atoms frequently combined with carbon and/or hydrogen. Silicone is an element found in sand, where it is extracted from and passed through hydrocarbons.

Silicone does not contain allergens, such as heavy metals, nickel or latex. Silicone is used in various forms in healthcare (eg prostheses and artificial joints) and in cooking, because of its fantastic properties. Silicone is not plastic, nor has our non-renewable natural resource, oil, been used when manufacutring silicone.

Advantages of silicone as a jewelry material:

  • lightness: a piece of jewelry weighs only a few grams
  • non-allergenic: very few people are allergic to silicone
  • safety: the material does not dissolve chemicals on the skin (which eg plastic can do)
  • durability: the jewelry lasts well and can withstand wear and tear
  • hygienic: the jewelry can be washed after use and thus kept clean and hygienic

The hooks we use

Our earring hooks are silver-plated and their base metal is brass, which is a mixture of copper and zinc. Brass is the base metal in almost all jewelry accessories, as it is durable and harder than, for example, copper alone. The hooks do not contain nickel. All metals we use comply with the EU's REACH-regulation.

Niobium hooks

It is also possible to change to Niobium hooks for an additional fee.

Niobium (chemical symbol: Nb) is the safest metal for people with allergies and sensitive skin. If you have never been able to use any metal jewelry, you can use Niobium. It is a pure element (99.99%) without any extra added.

Niobium does not react with the skin's chemistry and does not rust or darken. Because of this, Niobium is used in medical devices such as pacemakers.

Wooden jewelry

The 2 mm thick birch veneer we use meets the FSC standard. The FSC mark indicates that only timber from FSC-certified forests has been used as the product's material.

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Terms and conditions

Delivery times

We ship all items quickly (within 1-2 working days from order). All orders are sent by post as a standard letter. Free delivery WorldWide!
An estimated delivery time for international deliveries is 3-8 business day depending on the destination.
Once your order has been shipped, you will receive a delivery notification.

Payment methods

Our international customers have the Credit cards and PayPal options.

Payment Service Provider

Paytrail Plc acts as a collecting payment service provider and is an authorized Payment Institution. Paytrail Plc will be shown as the recipient on your bank or credit card statement. Paytrail Plc will forward the payment to the merchant. For reclamations, please contact the website the payment was made to.

Paytrail Plc, Innova 2, Lutakonaukio 7, 40100 Jyväskylä, Phone: +358 207 181 830, Business ID 2122839-7

Return and exchange policy

We offer a 30-day return and exchange policy to all of our products. The cost of the return or exchange to the customer is limited to the return postage.
To return or exchange a product:

1) Send an email to: coruu@coruu.com, and let us know which product you wish to return or exchange.

2) Pack the unused product that is fit for resale into an envelope in the original cellophane bag (do not fold the jewellery) and send it to us by post as a letter. There’s no need to use the original cardboard packaging: the cellophane bag is sufficient.
Please note that the letter must be sent with postage paid by the customer.

Return address:

Cuu Design Oy
Jousitie 2 A
20760 Piispanristi

Remember to enclose your contact details with the return or exchange!

3) We will refund the jewellery to you as soon as possible, however, no later than 14 days from the moment the return was received.

Contact us

E-mail: coruu@coruu.com

Address:
Cuu Design Oy
Jousitie 2 A
20760 Piispanristi

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