PRODUCT INFORMATION » Adjustable Uprights» No tools required to assemble or disassemble.» Easy to use with rapid height adjustments. » Made with Anodized Aluminum to provide a Durable, Corrosion Resistant finish»  Four slots every 90° at the top of the Upright» Great for Backdrops and Event Draping (Weddings, Special Events, Banquet Halls, Convention Centers, Hotels and More) Our Adjustable Uprights and Crossbars (Drape Supports) are rated to carry 35 pounds (22.65kg) evenly distributed over the Crossbar (Drape Support). HOW THE UPRIGHT WORKS? The slip-lock collar assembly locks automatically when the inner pole is raised vertically to the desired height. As a vertical load is applied downward, the ball-taper lock feature locks tighter. The more pressure applied downward the tighter it will lock. To release lock, simply raise the inner pole slightly and lift the release ring.  For safety, hold the inner pole firmly while raising or lowering the height. Our Adjustable Uprights have a 2" Diameter. RECOMMENDED BASES FOR UPRIGHTS (bases are not included & sold separately) Below is a breakdown of your Base & Pin size that is recommended for your uprights. UPRIGHT SIZE BASE SIZE PIN (INCLUDED W/ BASE) 3' Tall Upright 8"x14" (6lbs) 3" Tall x 1.5" Diameter 8' Tall Upright ** 14"x16" (12lbs) 6" Tall x 1.5" Diameter 4'-7' Adjustable Upright 14"x16" (12lbs) 6" Tall x 2" Diameter 5'-8' Adjustable Upright 14"x16" (12lbs) 6" Tall x 2" Diameter 6'-10' Adjustable Upright 18"x18" (18lbs) MOST POPULAR 6" Tall x 2" Diameter 7'-12' Adjustable Upright 18"x18" (18lbs) MOST POPULAR 6" Tall x 2" Diameter 8'-14' Adjustable Upright 18"x18" (35lbs) 6" Tall x 2" Diameter 9'-16' Adjustable Upright ** 18"x18" (35lbs) 6" Tall x 2" Diameter 10'-18' Adjustable Upright ** 24"x24" (29lbs) 9" Tall x 2" Diameter 8'-20' Adjustable Upright ** 24"x24" (62lbs) 9" Tall x 2" Diameter 9'-23' Adjustable Upright ** 24"x24" (62lbs) 9" Tall x 2" Diameter   ** These items exceed 96” and must be shipped with a Freight shipping service and can only be delivered to a Business or Commercial address. Please note a sales rep may call to discuss your available options if an order is placed for the certain sizes that apply. SHIPPING / TURNAROUND TIME This product can take up to 2-3  business days until it ships and is not eligible for the Free Economy Shipping promo. You can view available shipping rates during checkout. Contact us for rush orders.  + Expedited Shipping Options Available During Checkout.