Tume Kask – Card Holder with RFID Blocking

About the Product

Tume Kask – Card Holder with RFID Blocking by Seif Design is a metal card holder designed using natural slate stone. Slate forms deep underground over millions of years from clay, volcanic ash, and other finely structured rocks, giving each piece its own layered, organic character.

The design is minimalist and nature-inspired, with a slim profile that sits comfortably in your pocket or bag. RFID blocking helps protect your cards from contactless theft, while fully environmentally friendly packaging reflects the same care for detail beyond the product itself.

Design & Features

• Metal card holder with natural slate stone design
• Minimalist, unique and nature-inspired look
• RFID blocking for protection against contactless theft
• Accommodates up to 12 cards
• Available in versions with and without a money clip
• Packaged in fully recyclable, environmentally friendly materials

Details

• Material: Metal card holder with natural slate stone design
• Capacity: Up to 12 cards
• Options: With or without money clip
• Protection: RFID blocking against contactless theft
• Origin: Made in Estonia

Styling Inspiration

Tume Kask is a good fit if you like clean lines with a subtle natural twist. Use it for your key bank cards, ID and travel cards, and carry it in a blazer pocket, crossbody bag or backpack. The slate-inspired surface pairs naturally with minimalist outfits, technical outerwear and simple leather accessories.

About the Brand

Seif Design is an Estonian brand known for its distinctive stone-design card holders. All products are made in Estonia, with packaging that uses only fully recyclable materials, and production processes powered by green energy from solar panels. The result is a collection of durable, nature-inspired pieces that aim to outlast fast-changing trends.