SB1 9" offset, 4" rd. Extended Gooseneck Trailer Coupler

9`` Extended Gooseneck Coupler for Flat bed truck 4`` round stem - SB1XL

SB1-6  4" round tube, 6" offset

SB112, 12" offset coupler with a 4" round tube. 

Extended Gooseneck Coupler with 16`` Off Set for 4`` round trailer stem 

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SB2 9" Offset Square Gooseneck Trailer Coupler

Extended Gooseneck coupler for flat bed truck w/9`` off-set with 4-1/2`` Sq Stem. - SB2XL

SB2-6 6" offset, 4.5" square tube

SB212, 12" offset, 4.5" square tube