RAM X-GripWheelchair Leg Rail Mount for 7″-8″ TabletsDesigned for use with the seat and leg rails on popular wheelchair brands, this kit includes a small RAM Tough-Claw clamp base connected to an 18 RAM Flex-Rod and medium double socket arm. The RAM Tough-Claw can be clamped to 0.625″ – 1.5″ diameter rails. Attach the included RAM X-Grip tablet mount for use with 7-8 tablets. The spring-loaded RAM X-Gripprovides a perfect fit for your tablet and can be easily adjusted to the ideal position.Specifications:Cradle Dimensions:Minimum Width = 2.5″ (Minimum Height = 7″)Maximum Width = 5.75″ (Minimum Height = 4″)Depth = 0.875″Overall Length: 26″Ball Size: B Size 1″ Rubber BallMaterial: Powder Coated Marine Grade Aluminum and High-Strength Composite