Everblock systems offers a modular building system of oversized plastic blocks that facilitates the construction of all types of objects. It’s quick and easy to build nearly anything, by stacking and organizing the universal blocks in nearly any shape, pattern, or size. No tools are required for installation or removal. Use these life sized blocks when building walls, props, or displays. There is no dirt and debris that is associated with traditional block construction. Anything you’ve built can be taken apart and re-assembled again, and the pieces can be re-used to construct other objects, making Everblock a unique green building method. Everblock modules are water and chemical resistant and can be used over and over again. Use them indoors or outdoors and in wet or dry environments. The blocks are fully weather and water-resistant containing UV inhibitors to prevent fading in sunlight and meet UL94HB, flammability standards. Manufactured using a durable, high-quality, polypropylene co-polymer and can handle the stresses of repetitive use. This material is non-absorbent and easy to clean. Each Block has a series of connector lugs, that are designed to nest into the underside of the next block. Sections can be staggered in 3” intervals, so that 1, 2, 3, or 4 of the lug sets nest into the other block. Lugs are designed to pressure fit into corresponding slots on the underside of the block on top. Underside ribbing provides structural support and a tight fit. Simply align each new block over the block below and center over the lugs that you want to connect with. Press down until you can’t push any further and blocks are fully connected. Everblock 5' L x 7' (+ 1" for lugs) H with stabilizing column ends. Contains: 91 full blocks, 28 quarter blocks, 7 finishing caps.