HEALLILY Teachers Pointer Classroom Whiteboard Presentation Teaching Pointer Stick for Teachers Optical Store Optometry Visual Chart auspowers_batchtwo If you can slide the

If you can slide the screen

✔Length: 30mm / 1

Double shielded insulation and black sleeve

STEP 1) Top Light Sensor Test Wavelength of UV Exposure: When exposed to optimal UVC germicidal wavelengths

HEALLILY Teachers Pointer Classroom Whiteboard Presentation Teaching Pointer Stick for Teachers Optical Store Optometry Visual Chart auspowers_batchtwo If you can slide theHEALLILY Teachers Pointer Classroom Whiteboard Presentation Teaching Pointer Stick for Teachers Optical Store Optometry Visual Chart DescriptionThis item is a Expansion stick for optometry, retractable Optometry baton sight stick extension type pen style. Features Color: Silver. Material: Stainless Steel Size: 50 x 0. 5 x 0. 5cm Retractable Optometry baton sight stick extension type pen style. Be suitable for glasses store and optical school. Be