Have been using this product for years. Excellent quality and easy to fix around bays as long as you measure and bend carefully. Tracks of this length come in two parts and the instructions say connect the two lengths before fitting. Don't do this. Fitting 5m of track with a wobbly joint in the middle is nigh impossible on a straight run let alone in a bay. It is perfectly possible to slide the connnector into one half of the track and then slide it halfway back when the two pieces are fixed in position as long as the supporting brackets to each half are kept a minimum of 10 cm apart at the joint position. Doing the screws up is a bit of a fiddle as they face the wall. I used a knife blade. Rolls could make the task much easier by providing hex headed screws and a cheap tightening key.