This is skateboard accessories combo package. It includes 1set truck, 1set wheel, 1set ABEC 7 bearing, 1set screws, 1set riser and 1set spacer. It could fit street skateboard, 7.5′ 7.75′ 8′ and 8.25′. It is great for anyone who wants to build their own skateboard or to replace older skateboard accessories!!!