Probability: Selecting with Replacement

The following thirteen items are in a bag: $\\$ A pen, a marker, an eraser, a pencil sharpener, a pack of gum, a pack of flash cards, a cell phone, a pencil, a phone charger, a pair of headphones, a book, a highlighter, and a stapler. $\\$ What are the chances that Sarah pulls out a writing utensil, places it back in the bag and then pulls out a different writing utensil?