Check the listing for details. RAM-VPR-106-1 RAM Printer Cradle with U-Bolt Mount for Brot.... Color: Black, Condition: New. Listed at 100.49 USD. RAM Printer Cradle with U-Bolt Mount for Brot... RAM-VPR-106-1 Genuine RAM Products! hardware included Assembly Hardware(2) 1/4 INCHES -20 U-Bolts for 1.25 INCHES - 1.5 INCHES Rails(4) 1/4 INCHES -20 Nylock Nuts(4) Rubber Capsclamp range 1.25 INCHES - 1.5 INCHES diametersocket to socket length 4.66 INCHES ball size C Size (1.5 INCHES )weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbsmaterials Marine-grade aluminumHigh strength compositepackaging type Poly BagWeight 1.9 lb clamp range 1.25 INCHES - 1.5 INCHES diameter socket to socket length 4.66 INCHES ball size C Size (1.5 INCHES ) weight capacity Standard Use: 4 lbsHeavy-Duty Use: 3 lbs materials Marine-grade aluminumHigh strength composite packaging type Poly Bag Weight 1.9 lb