Introducing the Plastic Ruler with Solar Calculator, a Versatile Tool That Combines Functionality with Convenience. This Dual-purpose Device Serves as Both a Ruler & a Solar-powered Calculator, Making It an Essential Addition to Any Students or Professionals Tool Kit. Crafted From Durable Plastic, It Offers Durability & Reliability for Everyday Use. Whether Youre Solving Math Problems, Measuring Lengths, or Conducting Office Tasks, This Multifunction Ruler has You Covered. with Its Compact Size & Lightweight Design, Its Easy to Carry with You Wherever You Go, Ensuring Youre Always Prepared to Tackle Any Task. Perfect for Students, Teachers, & Professionals Alike, This Innovative Tool Simplifies Your Workflow & Enhances Your Productivity. Upgrade Your Stationery Collection.