Y-Wheels, made by the famous Yellowood brand. The Y4 wheels feature a conical shape on the outside, but a square shape on the inside. This asymmetrical design is so that you can lock into your grinds easier. Handcrafted with love from Portugal, Spain. These Y-Wheels utilize a 65D urethane mixture. The dual ABEC7 pre-lubricated bearing is designed with a one-sided dust shield to protect the bearings while giving you a smoother roll! Each wheel is hand painted using a specialty graphic process to be as realistic to skateboard wheels as possible!