The Lucky QuadClamp™ is light, strong, and beefy for a reason: to save your mug and teeth. We don’t skimp, even on the small components. That’s why it’s made from aircraft-grade 6061 T-6 aluminum. We designed the clamp for strength and style, then slapped the Lucky logo on it to make sure you get that extra Luck while riding in the park or on the street! It’s designed to fit any 1 3/8” oversized pro scooter bars. Alternating bolts provide an even and extremely tight grip on your bars. Four 5 mm bolts are included.