Hella Grip is honoring 420 with this fresh and funky color-way. Based out of Northern California in the bay area, Hella grip was started by riders for riders. They have too many colors and designs to choose from, and each sheet is made of premium quality silicone carbide grit formula that provides great traction, but won't wear out your shoes. Featuring a Tear Proof-Water Proof PVC Liner and highly aggressive weatherproof adhesive.