Just received these in the post today from Jason at Arms Corps Models. I had prepared some 120mm grenades with Testors Olive Drab spray and then Vallejo Gloss Cote on top of this as I knew the decals were in transit. Nicely packaged and very reasonably priced Jason has include instructions that are easy to follow for first time decal users. Fig 1 shows the instructions and sheet with one decal removed. Fig 2/3 shows the decals after applying, quick spray of dullcote and some light washes on one of them with Vallejo Brown Violet to show some basic weathering. No doubt some memory searching will be going on amongst Planeteers as to the many variations on smoke we have encountered I always remember the striker mech was metal however there is no right or wrong and do it how you will. I will be attaching the pins later once everything is dried and settled. I didn't have any 90mm smoke grenades on hand but the decals are included in this set. Another great product from Arms Corps and highly recommended.