RAM Universal Laptop Tough-Tray Flat Clamping Arm Kit The RAM RAM-234K1-4U, flat side keepers, attach to the RAM-234-3 RAM Tough Tray. The side keepers allow for your laptop to close completely while in the RAM Tough Tray. Material: High Strength Composite Note: Part number reflects product packaged in clear clam shell for store shelf display.- RAM-234K1-4U*** Todos nuestros productos son exportados desde Estados Unidos hasta tu casa!*** Cualquier pregunta no dudes en contactarnos, estamos para servirte!