"Prove" Presented by PROV. Key Chain & Novelty DVD Available in store and online. ・Prove Key Chain 70mm x 50mm Rubber Material ・Prove DVD Full Length Video 18.5cm x 14cm Postcard included “Prove” is the first ever full-length video by a skate shop in Harajuku, PROV. This video capture the memories of PROV locals along with shop staff in the harsh Tokyo Skateboarding environment over a filming period of 3 years. This video will “prove” that PROV is a local skate shop in Tokyo.