There's always room for improvement and with Yellotools, we have direct access to installers all over the world to make adjustments that everyone can take advantage of! Our New wing design uses less material around the edges for a more compact feel and the thicker glue gives the buffer a more padded feel and also makes it great for wet installs too! The new wing design also makes our new Yellowing suitable for all of our 4" squeegee's. We have the Big Buffer available in our three best selling Micro, Microfine and Poly materials and they come in packs of 5!