High-quality construction for a durable, attractive addition to any classroom setting. Featuring fully rounded corners and edges for maximum safety and leg levellers on the bottom to accomodate any surface. Tables have r rounded, 6-inch corner blocks that attach to the legs and top with 1/4-20(one-quarter 20) x 60mm threaded connector bolts that fasten into 20mm inserts. Constructed in a beautiful, durable birch plywood in safe, non-toxic Natural UV that won't yellow or fade. Includes leg levellers. GREENGUARD™ Gold certified. Lifetime Warrantyy. Comes ready to assemble.