Easy to use you won't be able to do without these ocb ultra slim stick filters protected by a plastic film and already pre - cut! . convenient to store these ocb ultra slim filter sticks will slip into your tobacco pouch or bag on their own. . mark . ocb. presentation . a set of 10 packets containing 20 sticks of 6 filters each i.e. 120 filters in all. . specificities . ocb (odet - cascadec - bolloré) is a french brand of rolling papers created in 1918. ocb offers smoking articles such as rolling papers: ocb x - pert ocb slim premium ocb roll's ocb slim crystal.. .but also cigarette tubes rolling machines (rollers) tubeuses (tuber machines) or even filters for rolled cigarettes. . dimensions. the filter: length x diameter (mm) 14 x 5.7 mm.