You can enjoy peace of mind about your travel trailer’s security even when it is unattended. Enjoy peace of mind knowing your safety is taken care of. 【Universal Compatibility】This versatile lock fits hole cutouts ranging from 2-1/2″ x 3-1/2″ to 3″ x 4″, as well as door thicknesses from 1-1/4″ to 1-1/2″, making it ideal for use in various applications such as cargo trailers, horse trailers, small vans, and more.