Ok after ALOT of stuffing about I got the screens in. I went down to my local security screen door place and they gave me some heavy duty stainless steel mesh which was painted black. I cut a template using cardboard from a cereal box and trimmed so it was slightly bigger than the hole as they is a recess in the brake vent opening that you have to fit to as the lining has to overlap it and hold it in and prevent water from getting in. At no time did I have to remove and lining or the wheels.The hardest part was cutting the mesh. Any way all done! Looks great.One other thing to note the vents are different sizes, don’t know why.