Material: Teacher stamps are made of ABS material, high quality oil-based ink, no acid, no lignin, safe for children or teachers to use, without any danger Seal and storage tray: Tray dimensions are 7 inches x 1.9 inches x 2.3 inches. This tray contains 8 teacher stamps for the classroom, which is easy to store and not easy to lose. Make this set of signature seals can be used for a long time 8 Pattern colors Teacher stamps: This set of teacher stamps is available in 8 patternS1 These classroom stamps also come in a variety of colors for classes, teacher reviews, feedback, and student rewards. Teacher stamp: Each teacher supplies stamp can automatically change ink, very convenient. These teacher stamps can be dried quickly and marked clearly. So please feel free to use these colored stamps Vibrant design stamps: Students of all grades love their test papers and these stamps are printed with colorful and beautiful patterns to help them learn more actively. Classrooms and schools must have such personalized stamps to solve this problem, and teachers can use these colorful self-inking stamps to motivate students and give students a fun school life. The teacher's stamps make learning interesting and exciting Product name: Comment sealMaterial: ABSSize: 5.3* 4.3cmWeight: 0.22kgColor: ColorProducts include: 8* review seal, 1* storage box