RAM Mounts Tough-Claw Small Clamp Ball Base The RAP-400U RAM® Tough-Claw™ is the perfect mounting base for toolless installation and removal on round, square, and odd-shaped rails and bars. The small version of the RAM® Tough-Claw™ can quickly be clamped on rails ranging from .625" to 1.14" in outer diameter and is ideal for mounting phones, tablets, action cameras, rod holders, and much more in a wide variety of applications. Perfectly suited for mounting on the yoke of an aircraft, handlebars of bicycles and motorcycles, or even on kayak rails and roll bars, the RAM® Tough-Claw™ will soon become another essential RAM® component in your collection. Product Dimensions: Overall Height: 4.81" - Overall Width: 1.18" Clamp Range: .625" - 1.14" diameter Weight Capacity: Standard Use: 4 lbs Heavy-Duty Use: 3 lbs Materials: High strength compositeAdditional Information:Weight: 0.18 kg