Just for fun.... can you guess what the wire-pulling mouse is?! We were having trouble pulling wires through one particular bend; which can happen when the edges of PVC are not perfectly smooth entering a bend. One way to assist feeding the wire is to run some string thru first and pull the fishtape around the corners. The trick is to trim a 'feminine hygene product' to reduce the bulk a little, and use the handy attached string to tie to contracters string and suck the thing through with a shop-vac! The, tie the string to the fish-tape, feed that through, then pull the wires.... No electriction's toolbox should be without this secret device.