Aluminum alloy student set of ruler Multifunctional drawing ruler straight ruler triangular ruler protractor four sets of ruler metal scale ruler Feature: Quantity: 4Pcs Colour: B-lack Material: Aluminum Alloy Product size: 17.9x7.3x1.3cm/7.05x2.87x0.512in Package size: 18x8x2cm/4.72x4.33x3.15in Net weight: 62g/0.137lb Gross weight: 62g/0.137lb Descrition: Timeproof Aluminum Alloy Material: Crafted from superior aluminum alloy, this set is sturdy and durability to breaking, ensuring long - term use. This material is more timeproof than common plastic, maintaining its shape and functionality over time. 15cm Straight Ruler for Versatile Drawing: The 15cm straight ruler is suitable for all kinds of drawing and measuring tasks in study or exams. With clear markings, it allows for precisely measurements, enhancing the accuracy of any work. Complete Four - Piece Set: Includes a 15cm straight ruler, a protractor, and two triangular ruler, fulfilling multiple measurement and drafting needs. Whether for geometry problems or art homework, this set has all the tools needed for school - relavant tasks. Safety - Oriented Design: Features rounded edges that offer effective protection during use, advoid potential injuries. This design is especially important for young students, ensuring a safe using experience. Convenient Boxed Storage: Individually boxed for easy organization and storage, also making it an excellent gift choice for festivals, graduations, or other scenes. The compact box not merely keeps the tools organized but also makes it portable, anytime and anywhere for use . Package Content: 1x Straight Ruler 2x Triangular Ruler 1x Protractor Timeproof Aluminum Alloy Material: Crafted from superior aluminum alloy, this set is sturdy and durability to breaking, ensuring long - term use. This material is more timeproof than common plastic, maintaining its shape and functionality over time. 15cm Straight Ruler for Versatile Drawing: The 15cm straight ruler is suitable for all kinds of drawing and measuring tasks in study or exams. With clear markings, it allows for precisely measurements, enhancing the accuracy of any work. Complete Four - Piece Set: Includes a 15cm straight ruler, a protractor, and two triangular ruler, fulfilling multiple measurement and drafting needs. Whether for geometry problems or art homework, this set has all the tools needed for school - relavant tasks. Safety - Oriented Design: Features rounded edges that offer effective protection during use, advoid potential injuries. This design is especially important for young students, ensuring a safe using experience. Convenient Boxed Storage: Individually boxed for easy organization and storage, also making it an excellent gift choice for festivals, graduations, or other scenes. The compact box not merely keeps the tools organized but also makes it portable, anytime and anywhere for use .