I order this without think much about how much help it would be . I have only use it a few time , but already I can see that I 'll do as the other contractor\/reviewer say and buy several for different type of job . this first one be hold assorted screw , bit , bit holder , tape measure , etc. so that when I be start work , I do not have to search through box and bottle for the thing I 'll need ... I just grab the bag and go . I carry it by the outer string rather than the loop handle in the middle and this pull the top tight so nothing be likely to spill unless I drop it . I like it ! good purchase .