Sterling Silver Plated 512M USB Flash Key Chain. More than just a key chain, this unique personalized item is also a 512 mg flash drive! Both elegant and useful, our personalized flash drive key chain is sterling silver-plated and bears the initials of the owner. Large enough to handle easily, but small and light enough to fit in a pocket or purse, this personalized key chain is an ideal gift for students or executives. Measures 3 ½” x ¾” x 3/8”. Personalized with three letters. USPS Priority Shipping only. Please allow up to 12 business days for personalization. Special Order. PLEASE ENTER YOUR 3 LETTERS (IN EXACT ORDER) IN THE COMMENTS SECTION OF THE CHECKOUT PROCESS.