Bought this and a set of rear seat jackers for my Tundra. Well manufactured craftsmanship using quality materials and a better than factory finish (powder coating), this MMP piece utilizes a prior unused space for those who are always looking for organization and storage within our vehicles. So far, I placed the 1/2" seat jacker spacer in the rear seat posts. Being 5'7", it helps give me a better view on a leveled truck, without compromising the comfort. Having taken the vehicle on long (25+ hr one way) road trips, I can say I that I never had an issue with the Tundra's seats, but the better view is definitely something that helps every time I jump in.