adjustable plastic ring.5*3*2.5MM.stainless steel 300#. Products adjustable plastic ringA53205*3*2.0MMstainless steel(300)diam: ... ,screw:4*30 screwsS.NA53205*3*2.0MMstainless steel(300)diam:11mm,expandedare:125*75*2.0mm, ... ,screw:4*30 screwsA.CA53205*3*2.0MMstainless steel(300)diam:11mm,expandedarea:125*75*2.0mm, ... ,screw:4*30 screwsB.GA53205*3*2.0MMstainless steel(300)diam:11mm,expandedarea:125*75*2.0mm, ...