High-quality contruction for a durable, attractive addition to any classroom setting. Featuring fully rounded corners and edges for maximum safety and leg levelers on the bottom to accommodate any surface. Tables have 4 rounded, 6-inch corner blocks that attach to the legs and top with ¼-20 [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. GREENGUARD™ Gold certified. Lifetime Warranty.