RAM Ball Base for Rails up to 1/2″ Diameter

" style="font-family: Arial, sans-serif;font-size: 18px;border-collapse: collapse;width: 100%"> Hardware Included (2) 1/4"-20 x 3/8" Set Screws Ball Size B Size (1") Weight Capacity Standard Use: 2 lbs | Heavy-Duty Use: 1 lb Materials Marine-grade aluminum Packaging Type Poly Bag Weight 0.09 lb