I recommend the teacher! Super observation loupe EW401 (1 piece) Ray Mei Fujii 490256241351

W55×H132×D8mm 35g A magnifying glass with 3.5x, 6x, and 13x lenses that allow you to discover the microscopic world. ◆3.5x, 6x, and 13x lenses Body: PP, Lens: Glass, acrylic resin, Strap: ABS, polyacrylic