I save all disposable water bottles (with caps on) till I can stuff a large leaf bag tight with them.after a few hundred shots rotate 90 degrees and as you do this the bottles will compact smaller and smaller add more bottles and drop into new bag as needed my current one is over a year old and still stopping arrows now this is like I said for truly PO BOY's I shoot recurves and longbows I can not say if it will stop mechanized cam arrow launchers (compounds)lol just can't bring myself to calling those bows,but for a stick bow this will do when and if you ever find you have really joined the ranks of us PO BOYS. God bless.