Correll Adjustable Height Collaborative Desk. Black Granite Thermal Fused Laminate top resists scratches, dents, paint, markers, crayons, and food and juice stains. 30″x41″ Wing shaped top. Thermal Fused Laminate (TFL) is a resin infused laminate not glued on like high pressure laminate, it is fused to the board using a heat treatment process. Adjustable height can be set from 25” to 35” in 1” increments and includes Hex Wrench for fast height adjustments. Top is sealed on both sides preventing moisture from entering the table and causing warping. Correll helps you create a modern creative transformable workspace. Black strong steel frame and black T-Mold edging to protect the table as well as your walls. Heavy Duty yet portable for easy storage. Ideal for demanding environments. YOU CAN COUNT ON CORRELL: Correll was established in 1969 and has been in business for over 50 years. With our out Standing Customer Service, innovative new product lines, and the largest selection of Folding Tables available from any manufacturer, now, more than ever, you can count on Correll.