Erde 122 Side Panel Extension Kit Will also fit Maypole SY120 or Daxara 127 trailers. Measurements – 48″ x 14″ side panels 38″ x 14″ front & back panels Make your trailer deeper with this kit. A bolt pack is included. Please note some D. Y skills are needed to fit these panels. Alternatively we can fit these for you, please message for a quote, you will need to bring your trailer into us to do this.