The slat-base TW FIX PREMIUM has 30 spring slats that guarantee a stable and resilient surface. Spring strips are embedded in caps and attached on top of the frame of the laminated wood. The slat-base TW FIX PREMIUM is suitable for all types of mattresses especially heavy mattresses such as TOP KING. The slat-base is tested to hold up weight up to 160 kg. The slats are produced in EU. Standard size: 200×80/90