Size information: retractable pen holder has a diameter of 4 cm/ 1.6 inch, a height of 1.8 cm/ 0.7 inch and a length of 13 cm/ 5.1 inch when it is not retractable; The rope of this pen holder can be up to 60 cm/ 23.6 inch and can be hung on the pocket or belt, convenient to carry. Reliable material: the head of the flexible pull pen holder is made of metal and plastic materials; The fixed side is made of solid metal material, and the other side is made of wear-resistant plastic material, which is corrosive, durable and not easy to fall off; The steel wire rope is coated with rubber, full of elasticity and not easy to break; The rubber pen holder can hold the pen well, not easy to fall off. Anti-lost and quick access: the elastic silicone pen holder can hold the pen in place; You can easily stretch the pen when needed, and loosen it after use to let the pen return to its original position under the pull of the retractable cord; This product can help you find the pen at any time and avoid losing it. Easy to use: the telescopic pen holder can be easily clamped on the collar, shirt pocket, belt, backpack and other places you like through the clip on the back of the badge reel, so you can use the pen anytime and anywhere; It suitable for most woodworking pencils and pens. Wide applications: pen pull holders are very suitable for doctors, woodworkers, construction workers, nurses, doctors, volunteers, outdoor enthusiasts or some people working on the roof, helping them to carry and use the pen more easily, avoiding repeated picking up and putting down, convenient and practical.