These slim cotton filters from RAW® are 100% biodegradable and are made with unbleached natural cotton. The Raw Slim Cotton Filters are 6mm diameter; 6mm filter tips produce a medium size roll-up, not too skinny - not too fat! Each bag of filter tips is re-sealable with each bag containing 200 slim Raw filters. You can also bulk buy your filter tips from us, we do various multi-buys of bags to save you money. Raw cigarette filter tips will strengthen your rollie as well as keeping out any unwanted rolling tobacco.