Alien Workshop has been home to talented riders since its first pro, Rob Dyrdek. This complete arrives built, so you can start skating immediately. Dimensions: 7.75" x 31.5". Pro model: Rob Dyrdek. Alien Workshop wheels: 52mm. 99A. Small diameter and hard durometer. Reflex Hornet trucks. Reflex Abec 3 bearings. Reflex hardware. Custom die cut griptape for traction.