Two-Section Rod Central Column Extender Tube For Photo Studio Monopod Dslr Product Details This center column is made of carbon fiber, more durable and corrosion-resistant. Central Column Extender can add height to tripod/ DSLR camera/ selfie stick/ stabilizer etc, 1/4 screws and screws nuts can mount most different devices and accessories. The height of Tripod extension tube is adjustable from 7.5 inch to 12.6 inch (19cm to 32cm)?Tubes diameters are 22mm and 25mm. tripod extension rod weighs only 120g (4.24oz) and is only 7.5in (19cm) tall when reduced?making it easy to carry and store Easily and quickly loosen the twist lock and extend the center column to an ideal height?then tighten the knob to fix Carbon Fiber Material -- This center column is made of carbon fiber, more durable and corrosion-resistant. Wide application -- Central Column Extender can add height to tripod/ DSLR camera/ selfie stick/ stabilizer etc, 1/4 screws and screws nuts can mount most different devices and accessories. 2-section Adjustable -- The height of Tripod extension tube is adjustable from 7.5 inch to 12.6 inch (19cm to 32cm), Tubes diameters are 22mm and 25mm. Lightweight and Convenient --The extension rod weighs only 120g (4.24oz) and is only 7.5in (19cm) tall when reduced, making it easy to carry and store. Knob retractable -- Easily and quickly loosen the twist lock and extend the center column to an ideal height, then tighten the knob to fix. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.