Description:Material: Silica gelQuantity: 8 pcsCircumstance: Approx 22cm / 8.7 inchWidth: Approx 0.7-1.1cm / 0.3-0.4 inchHole size: Approx 9*2mm / 0.35*0.08 inchColor: Blue， yellow， brown， red， black， pink， rose red， orange (each color has 1 piece)With excellent elastic， will fit most styles of children's glasses / sunglassesSoft and comfortable to wear， won��t get stiff in winterCan adjust the tightness by move the position of glasses legsPerfect to keep the glasses in place， keep your child's glasses safe and securePackage Includes:8 x Glasses cords