Main Feature:

• 100% Brand New and Never Used
• Extension Tube for 1.25" Telescope Eyepiece or filter
• Made of aluminum, anodized black
• This 1.25" extension tube add a little length to the light path on your telescope, and provides extra focuser "back travel" that is often needed for short-range terrestrial viewing
• Brass compression ring design hold your eyepieces or accessories securely
• Thread pitch: M28.6*0.6
• Extend focal length: 34/40mm
• Color: Black
• Net Weight:33/38g