The P310 OPEN sports steering wheel features 4mm anodized aluminum spokes and is covered with high-grip suede. The P310 OPEN competition wheel measures 310 mm wide and 235 from top to bottom. It has an open top with anatomical conformations for optimal grip and a particular squashed shape for use in narrow cockpits or single-seaters. Comes with 6 pre-drilled 70mm mounting holes.