[27mm 2pcs Upper 2pcslower]

[27mm 4pcs lower part]

[19mm 4pcs Upper 4pcslower]

[20mm 4pcs upper part]

1.Double shower door rollers with aluminum shaft. 2.White nylon roller thickness 6mm.Inner diameter 5mm.According to diameter of nylon roller, there are 19mm,20mm,23mm,25mm,27mm.Please select "Color" and "Outer Diameter" you need, I will post according to your order. 3.Assembly size requirement:Glass thickness:4-5mm;Glass Mounting hole diameter:10-12mm. 4.Main Material:Nylon roller,aluminum shaft,304 stainless steel screw. 5.Color:Gray or White. 6.Direction:Swing. 7.Mainly used in bathroom shower room shower enclosure show door pulley.