The backrest can be manually adjusted several times: For reading, watching TV or breakfast in bed. 28 elastic spring wooden slats with 7 lying zones (functional and visual!) Softer shoulder zone (blue caps) and stable pelvic zone (anthracite slats) for correct adaptation to the spine. Individual hardness regulation in the lumbar region (yellow slider) to adapt to the desired weight and the desired lying hardness. With two slatted frames in a double bed, there are no cracks due to spar-covered duo suspension elements. Harmonious pressure distribution and stabilization by means of a central belt. Durable and stable due to multi-veneered plywood. With a price, an advantage compared to a fully assembled slatted frame. The frame is delivered disassembled in a box for self-assembly. Quick and easy assembly with illustrated assembly instructions. Made in Germany.