Teak's updated their Apex Street wheels to have an all-new durometer of 61D; this is their softest wheels yet and is equivalent to a 101A hardness. This makes these wheels feel similar to actual skateboard wheels! The urethane material will create a satisfying squeak when you powerslide and will also feel more premium when compared to plastic fingerboard wheels. These wheels have a 7.7mm diameter and a 4.9mm width.