Buster activity mat envelope level 2 buster activity rainbow purse task additional task to be used with activity matnbspdifficulty level 2nbspthis task consists of a square envelope which is closed with the stick the task is attached to the buster activity mat with the 4 press studs the dog must then remove the stick to solve the task and find the treatnbsphow to use watch the video belownbspnbspthis task attaches to the activity mat with 4 press studs it is important that your dog always su