This box does many things. 1 A basic loop selector. 1 loop or 2 separate loops 2 Or you can use it to choose either of 3 destinations 3 Or you can use it to switch between 2 ( or maybe 3, I forget) instruments and 1 amp with individual volumes for each channel. All in all a pretty versatile box. They don't make these babies anymore. $60 shipped US only. Sorry no paypal.