This came in 5 pieces and did not appear it would stay together for a long period of time.  However, it has proven to be durable all year round in the heat of the summer, the tornado winds, and the fidget deep cold of the north east.  It is an excellent produce and does what it is meant to do help me make soil gold for my garden.  The little doors on the bottom is convenient to pull the compost that is ready with a shovel.  They slide up and down easily and have held up for these several years and look like they will continue to in the years to come.  The vents allow air to circulate but keeps the rain out so that the compost mixture do not become too moist.  I will be taking this with me to my new house in the country and will buy more to keep a larger garden.