Platinum Health Horizontal 4" Extended RailsHorizontal Rail Extensions may be purchased to extend the width (reach) of a bath bench into a shower or bathtub. Features If you purchase the 4 inch variant, you will receive 28 inch rails. If you purchase the 8 inch variant, you will receive 32 inch rails. These rails will be swapped out with the 24 inch rails. These rails will fit the Gateway Premium Sliding Transfer Bench and the Carousel Premium Sliding Transfer Bench with Swivel Seat. These