Dutton-Lainson 6354 4' Roller BunksThe Dutton-Lainson 4' roller bunks are sold in pairs and are a quick, inexpensive way to upgrade bunk style trailers to rollers. . The rollers are made of a durable wear resistant inner surface and a softer cushioned outer surface. Constructed from heavy 14 gauge steel with a black powder coat finish for durability in marine environments. Easy to install, these bunks can be vertically mounted to 2 x 4 bunk boards, existing mounting brackets, or, mount with the sold separate model 6356 brackets. Each set of rollers has some wobble capabilities, up to 10, to provide some self-alignment with the boat hull. Load or launch your boat with ease thanks to these roller bunks that allow you to buck to the water's edge and roll on/off.Product Features: Made in USA; Supports up to 2500 lbs of distributed weight; 10 (5 pair) Rubber Rollers per Bunk; Heavy 14 Gauge Steel Construction; Powder Coat Black Finish; Mounting Hardware NOT Included; Click here for Dutton-Lainson 4' Roller Bunk Installation Instructions