These Howard Porter Bullmaster Tri Axle Side Tippers have the following specifications; Size - 8.0m x 2.5m x 1.2m LxWxH of Body Capacity - 21 cubic metres Subframe - 10 metres overall length Tip Cylinders - 5" Single Stage, double acting, externally mounted to each end. Door Cylinders - Hydraulic cylinders, single stage, double acting Hydraulics - Air operated directional control valve with manual overide. Steel hydraulic lines fitted on outside of chassis rails for easy access. Hydraulic hoses fitted to front of subframe with 1" PBR compatable coupligs. King Pin - 90mm Kingpin to suit Tandem or Tri Axle Dolly Spare Tyre Carrier Landing Legs - 2 speed, manually operated Suspension - Tri mechanical overslung 9 Leaf Spring Packs Road Train Items - RINGFEDER Tow Hitch, air, hydraulics and electrics to rear. Electrics - HELLA LED lights. Tarp System - Retractable MESH tarp (manually operated)