SEC-SM-4302-LQ/W Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: SEC-SM-4302-LQ/W MANUFACTURER: Seco-Larm Product Details Roller-Ball Recessed-Mount N.C Magnetic Contact. 360° rollerball. 18" leads. Roller travel is ¼". UL, CUL Listed. White. Sold in multiples of 10 (pric... Product Details Back Product DetailsRoller-Ball Recessed-Mount N.C Magnetic Contact. 360° rollerball. 18" leads. Roller travel is ¼". UL, CUL Listed. White. Sold in multiples of 10 (price is for 1 pc).