Our Slip Fit System is known as the "Time Saver System" for your pipe and drape setup. 1.5in Slip Fit Bases pair up with 1.5in Uprights. Upright pipes are available in fixed/standard heights - or telescoping/variable heights. Most Slip Fit Bases feature a stacking slot allowing them to be stacked on top of the pin for optimal storage. We recommend using the 16" x 14" for drape 8' or less, and use the 24" x 24" for anything over 8'.