© Magna-Plas Pty Ltd. E: info@magnaplas.com P: 03 5979 4222 F: 03 5979 4112 Marine Trailer Products  Ute & 4WD Products  Engineering Plastics & CNC Machining   Magna-Plas Are Manufacturers Of High Quality Trailer Parts Out Of  Polyethylene. Unlike Rubber Products; Magna-Plas Material’s Do Not Split, Causing Damage To Your Boat Or Trailer. Magna-Plas Marine Products Are Specifically Designed For Aluminum Boats. - Boat Rollers - Trailer Planks - C-Section Skids - Trailer Slicks Welcome