Hallmark is one of the UK's leading manufacturers of smoke grenades and smoke flares. Hallmark grenades come in 9 colours - pink, blue, red, white, orange, purple, green, black, white. Smoke grenades can come in various time durations from 30 - 120 seconds. All our smoke bombs are CE approved. Some Grenades are the perfect accompaniment for celebrations and parties. Whether it be a single smoke flare or multiple the effect is stunning and is great for using in photos which you can use on Instagram and Facebook.