Shop › HARD 13"x19" Mosaic Poster Image 1 of 1 HARD 13"x19" Mosaic Poster $30.00 This is a 13"x19" mosaic poster of Harrisburg Area Roller Derby (HARD). Made up of game photos. Quantity: Add To Cart Added! This is a 13"x19" mosaic poster of Harrisburg Area Roller Derby (HARD). Made up of game photos.