I used these unicorn columns for my daughter's 1st birthday. They were easy to assemble. If you have an air compressor, things go a lot quicker as far as assembly goes, but if not it isn't very time consuming.The directions gave us a few different possibilities and designs to assemble the balloon column. The unicorn heads just topped the whole column off.We had an indoor party using these columns and they were great for photo shoots alsoThis product was very easy to assemble and looked so wonderful at my daughters birthday party! We didn’t use the water or sand in the bottom and it worked perfectly. The unicorns are a little too heavy to stay upright, but we used the little stickies that came with the kit and taped them to the regular balloons for them to stay! We are keeping this to use for future party’s!Very cute and true to picture but be careful blowing up the unicorn balloons, they will pop easy. I would purchase this item again.Loved the colors and balloons. Also very easy set up !Tower came together easy the star balloons fill hole was not the standard size so we could not use the tank we rented to fill themI loved them. Beautiful colors easy instructions would totally recommend and buy againThis worked perfect for my daughter's 5th birthday!! lots of balloons in case some break and the columns were sturdy. Used it with the matching garland setEverything was OK except for the top piece it didn’t fit in the circle I didn’t figure out how to put it on the instructions didn’t say anything about it but the center balloon that was supposed to be held with that piece did not work have a balloon in the middle didn’t stay up