... all your memory cards in one place, so you won't lose it Closed Dimension :70mm(L) *70mm(W ... all your memory cards in one place, so you won't lose them any more- Ultra-slim and lightweight ... ,for exmaple ,batteries ,adatering ring ,data line , The case will keep your memory cards in a secure, ... so they'll stay in perfect condition and won't be misplaced. The memory card case is compact and lightweight, ...