1.Highquality materials: this compass set is made of highquality metal. The material is and odourless, does not fade or rust, is durable and dropresistant. It has a high strength and can withstand collisions and bumps. You don't have to worry about damage during transport or storage. It is suitable for longterm use. 2.Quick setting: the compass for primary school students can quickly adjust the compass, which can be easily and accurately adjusted to draw circles of different sizes. The sharp needle holds the compass in the correct position and thus allows precise and shake drawing. 3.Packing list: You will receive a complete set of compass for primary school students, which contains seven tools: compass, long ruler, protractor, right angle triangle, equilateral triangle, eraser and pencil lead. The combination of a complete tool set can meet the drawing and measurement requirements of different groups of people such as students, teachers, engineers, designers and artists. 4.Exquisite craftsmanship: from the ergonomically designed, comfortable and easy to grip compass in the case to the clearly scaled ruler, triangle and protractor reflect all exquisite craftsmanship. Every detail has been carefully designed to ensure userfriendliness and precision.