Although all curtain poles are technically suitable, the recommended curtain pole for eyelet curtains is a 28mm diameter rod. Typically, an eyelet, or a grommet as they’re often referred to, is 40mm in diameter, making a 28mm pole ideal for the smooth gliding of these curtains. To ensure effortless opening and closing of the curtains, we suggest metal curtain poles; in comparison to alternative materials, they typically draw back more smoothly due to their sleek surface.