Feature

●Material: Rubber. Inner Diameter: about 40mm.
●Quantity: 2 pcs. Suit for 39-42mm microscope or telescope eyepiece lens.
●An essential microscope accessory . is a practical accessory, easy to install.
●Please contact us directly for immediate assistance if you have any problem with our product, we would be very pleased to help you and we will reply as soon as we can.


Description

Note:
Please allow 1-3cm error due to manual measurement. Thanks for your understanding.