<https://www.camping-intl.com/products/accessories/level-ramp-sets/milenco-quattro-bridge/#product>
<http://schema.org/description>
"The Quattro Bridge has been designed as a solution to levelling Twin Axle Caravans. Used to bridge the gap between the Quattro levels, when placed back to back. Just drive up and over the bridge to achieve desired lift.\r\n\r\nRecommended for use with the Quattro Levels and also can be used with the Triple Levels.\r\n\r\n&amp;nbsp;\r\n\r\nUse this clever Quattro Bridge for fast, simple and easy levelling on Twin Axle vehicles. Simply attach to the Levellers when placed back to back."
<https://www.camping-intl.com/products/accessories/level-ramp-sets/milenco-quattro-bridge/>