Check the listing for details. RAM Rail 1" Ball Mount with Multi-Pad Universal Notepad Holder RAM-B-149Z-MP1U. Color: Black, Condition: New, Made in United States. Listed at 93.99 USD. Features: ---Zinc coated u-bolt base with 1" rubber ball - simple installation and easy to use ---Includes hardware for rails from 0.50" to 1.25" in diameter and black cover caps to be placed over the exposed ends of the u-bolt ---Standard size double socket arm - overall length: 3.73"; socket to socket: 3" ---Diamond base adapter - connects the Multi-Pad to the mount ---RAM Multi-Pad Universal Notepad Holder with several mounting points and integrated magnets for holding your ferrous metal pen securely without the need for clips ---Overall length of the Multi-Pad: 8" ---Constructed of marine-grade aluminum and high strength composite ---Mounting kit supports up to 2 lbs. ---Made in the USA Included Hardware: ---(1) 1/4"-20 U-Bolt for .5" - 1" Rails ---(1) 1/4"-20 U-Bolt for 1" - 1.