Included Set: You Will Receive A Set of Four Sizes of Steel Rulers, One Each of 30 Cm (12 Inches), 20 Cm (8 Inches), 15 Cm (6 Inches) and 10 Cm (3.93 Inches). Dual Scale Design: Both Metric and Imperial Scales Are Featured on Each Side to Ensure Accuracy. The End of The Ruler Is Equipped with A Convenient Hook Hole for Easy Hanging or Fixing. Innovative Construction: This Metal Ruler Is Smooth and Clean, with One End Designed As A Square and The Other End Cleverly Incorporating Round Elements and Holes. It Is Not Only Beautiful But Also Practical, Allowing for Easy Hanging and Convenient Storage. High-Quality Material: Our Rulers Are Carefully Crafted from Premium Stainless Steel to Ensure Durability and Excellent Rust Resistance. Four Differentiated Length Specifications Are Available to Meet The Diverse Needs of Different Scenarios. Wide Applicability: This Stainless Steel Ruler Set Includes Three Sizes, Fully Covering Various Needs and Occasions. It Is An Ideal Choice for Students, Engineers, Architects, Teachers, Designers and Professionals in Various Industries, Showing Its Unparalleled Versatility., Manufacturer: REBECASKYENS