Finishing parts fitting the X-large smoke cans listed above (#SCCXL), you get enough parts to finish 12 devices. Parts list includes; 24 disc seating/securing rings; 12 solid bottom discs; 12 top discs with center hole/vent and 24 end caps to fit over each end of the case to finish the device. The bottom cap is glued in place, the top cap is not, so it can be removed revealing the ignition means (fuse, pull string igniter, frictioin igniter (see our ignition page for kits). To make large tactical smoke devices, each of the 13 1/2" #SCCXL tubes is cut into three equal lengths (4.5"). Example; to finish 36 large tactical size devices (12 tubes, 13.5 ÷ 3 = 4.5" long, for 36 cans) you will need three of these finishing kits. Detailed assembly instructions with pictures included. Note; this is a parts set/finishing kit only. It does not include the compositions or ignition means.