MaxGear Universal Economy Bookends, Nonskid, Heavy Duty Metal Book Ends Supports for Books, Movies, DVDs, Magazines, Video Games, Standard, 6 x 4.6 x 6.inch, Black, 2 Pair/4 Piece RFID BLOCKING TESTED &amp; APPROVED BY  INDEPENDENT LAB TESTS. Our wallets have been tested for 13.56 MHz  Frequency in which our credit cards, debit cards, driver license and ID  cards operate. PLEASE BE NOTED THAT the signal of some ID badge, access  cards and hotel room cards which operates in 125 KHz, can not be blocked  by this wallet. It&#039;s a must HAVE to protect your privacy and secure your data! Without Hesitate &amp; Order It! 1.High-quality, 4 slots for credit cards, up to hold 6 cards according to the credit cards hold you choose ( but 4-card is the best) 2. Easy to carry, Best size to put in your front /back pocket. 3. Security latch locks up tight to keep your cards safe from water, weather &amp; scanning thieves! 4. RFID Blocking Technology, prevent unauthorized access to personal information Material: Stainless SteelC olor: Black, Rose Gold, SilverS ize: 3.9* 2.6 * 0.6 inCa pacity: 4 slots for credit cardsFu nction: RF ID Blocking &amp; Security Lock &amp; Mini Design: suit for pocket wallet Material: Plastic Color: Black, Purple, Silver, Blue, Green, Pink Size: 4.3 * 2.9 * 0.8 in Capacity: 7 slots for credit cards Function: Security Lock &amp; Round Design &amp; Fold accordion style Material: Genuine leather Color: Black Size: Capacity: 4 slots &amp; money clip Function: Removable Money clip &amp; Clear ID Window &amp; Strap Design: Easy to access your daily card Material: AluminumC olor: Black, Rose Gold, Silver Si ze: 3.44 * 2.14 * 0.31 inCa pacity: up to 7 cards &amp; money clipFu nction: Mo ney clip design &amp; RFID blocking &amp; Thumb Design