Thoughtful design and intelligent engineering were performed with core principles focused on sustainability and structural integrity. Metal components are engineered using high-tensile-strength steel and meet or exceed all industry test standards. The well-engineered copolymer seat, back and arm coverings are durable, attractive and easy to clean. The self-rising, gravity lift seat design is a maintenance free solution. Core holds up to the challenges of a busy classroom as well as the physical demands of sporting events.