Specification: Features:<br /> 1. Made of high quality aluminum and anodized black, durable for long time usage. <br /> 2. Suitable for 2inch telescope focusing device, eyepiece or accessory. <br /> 3. Equipped with locking finger screws for insertion of astronomical fittings. <br /> 4. The brass compression screw is used for 2inch eyepiece and astronomical photography filter, avoid telescope accessories broken. <br /> 5. Easy to use and portable, convenient to carry and store. <br /> <br /> <br /> Specification:<br /> Condition:100% Brand New<br /> Material: Aluminium alloy<br /> Color: As Pictures Shown<br /> Head circle diameter: 5cm/2inch<br /> Bottom circle diameter: 5.9cm/2.3inch<br /> Total length: 7cm/2.8inch<br /> Thread diameter: 2inch M48x0.75<br /> Weight: Approx.114g <br /> <br /> <br /> Package list: <br /> 1 x Telescope Extension Tube<br />

The delivery time is around 10-20 working days after your purchase