To operate 2 slam bolts. Overall Dimensions: 140mm x 108mm. Cut Out Size: 112mm x 85 mm Use with slam latches LKV90FB and rods LKV114 or slam latch LKN2477 Rods and Slam bolts sold separately. With these units the paddle case has an integral 2-way mechanism, allowing it to be used for slam systems on larger doors, fitted vertically or horizontally.