These 90a Tensor Trucks Interlock White Skateboard Bushings Includes 4 Pieces - 90a from Tensor Trucks will keep your skateboard trucks fresh and adaptable, so you can keep shredding to your boards content! Warehouse Skateboards recommends that you change your bushings frequently in order to keep your skateboard responsive to your personal skateboarding style. Includes: Two Individual Bushings from Tensor Trucks.