RAM 1" Ball with Steel U-bolt Rail Base (RAM-B-231U) Type_RAM C Size 5" balls and a 1/2"

5" balls and a 1/2" NPT Female thread

5" x 3" rectangular base

the RAM® Adapt-A-Post™ will quickly become one of your favorite kayak accessories

Material: Marine Grade Aluminum

RAM 1" Ball with Steel U-bolt Rail Base (RAM-B-231U) Type_RAM C Size 5" balls and a 1/2"The RAM B 231U consists of a 1" rubber ball designed to sit at right angles to the mounting rail. The rust proof metal U bolt accommodates rails in diameter from 0. 5" to 1" in diameter. Included are black cover caps to be placed over the exposed ends of the U bolt and a composite adapter that can narrow the rail to a minimum width of 0. 5". Specs & Features U Bolt Dimensions: Accommodates rails from 0. 5" to 1" in diameter Material: Powder Coated