I have now bought 2 sets of self-adhesive magnetic strips - and am very happy with it. In particular, the version in white sports optically so on, are easy to install and keep up in terms of cost under. I use the magnetic strips for presenting the flipcharts my training and coaching in the classroom. The magnets I would indeed like to see in white, they are also likely to double the size and so handy to be, four pieces per bar would then suffice. Overall: a great product!