When i shopped online i wasn't sure if i had all the correct parts in my cart, so i called the Portland store. They confirmed my order was in stock, and also helped me with my parts question. I placed the online order, and with in a few hours i recieved a call from the order puller, confirming what i ordered, as well as inform me they were going to change my quantities of skyline towers to a bulk amount, which was a savings, and credited my account the difference. Within 3 days the rack assemblies were on my door step. I will always check with Rack Attack first for my camping and gear hauling needs. This has been a personal and professional purchase. I recommend 👌 Rack Attack!