Universal C-Clamp With 1/4 And 3/8 Thread Hole For Desktop Mount Holder Lcd, 2 Product Details ??HIGH QUALITY:?The Universal C-Clamp is made of Aluminum alloy, Durable, firm, lightweight and easy to carry. ?? ANTI-SLIP DESIGN:?Non-slip rub rubber pad, the rubber pad is made of environmentally friendly ABS material, the friction is increased and it can effectively prevent falling off. ??SPECIFICATION:? 1/4"-20 thread holes and 3/8"-16 thread hole?C-clamp jaws expand from 0.8 inch -1.6 inch / 20 mm to 40.6 mm wide. ??EASY TO ADJUST:?It is adjustable by screw knob, easy to operate, multiple bracket mounting holes, freely adjustable installation angle. ??PERFECT FOR WOODWORKING:?Attaches easily to desks, carts, benches, worktables, posts, headrest to the clamps,etc 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.