Medium Back Knee Tilter Contoured cushions support the user in comfortable, contemporary style. Standard with tilt tension/tilt lock controlArm Chair with four legged base. Complementary and coordinating solutions for office guest seating, reception environments, or meeting and multi-purpose rooms. To furnish complete office environments, many styles are available in other models such as tilter and ergonomic models. Various bases, textiles and finishes are available to customize your seating depending on series selected.