The ABS plastic corner mounts are designed to attach single or multiple solar panels to a RV, caravan or boat without the need for drilling, maintaining seal integrity.. Modern solar panel mounting solution for your RV or Caravan roof.. To be installed on each corner of one standard solar panel. ABS molded plastic. Aesthetically pleasing with no sharp edges. Can be mounted with a silicon adhesive or common fasteners and fixings or a combination of both.