THE PERFECT ACCESSORY FOR A BRIGHT DAY ON THE LAKEChums Slip Fit three-millimeter Rope Eyewear Retainer slides over your eyewear frames to provide a forward-mounted style. The nylon rope construction provides unique strength and durability, while the adjustable bead allows you to easily find the perfect spot for your shades. Durable perlon cord measures 23 inches of usable length. Fits small to medium frames.-a FEATURESChums Slip Fit 3mm Rope Eyewear Retainer slides over your eyewear frames to provide a forward-mounted styleThe nylon rope construction provides unique strength and durability, while the adjustable bead allows you to easily find the perfect spot for your shadesDurable perlon cord measures 23 of usable lengthFits small to medium frames