Inline square pear Smooth coated KHAKIGREEN & CAMOBROWN all my inlines take size 8 swivels, and please remember the inserts are made of a hard plastic that will be different in wheather conditions (IE) Winter months the plastic is harder for the swivels to fit into only first and second time, but like anything new will ease in time, and these have been field tested by all my field testers with great results, please see photo for more information.