Rosin Tech Labs offers a product called Pablo's Revenge Hash Walkers, which are infused prerolls. Product details Pablo's Revenge Hash Walkers are a type of infused pre-roll offered by Rosin Tech Labs. They come in packs of six, with each pre-roll containing 0.4g of material, totaling 2.4g per pack. These prerolls are hand-rolled joints that are infused with ice water hash. The hash infusion consists of 25% award-winning ice water hash mixed with 75% premium flower.