Material: The retractable pen holder is made of metal carabiner and silicone pen holder, the rope is steel wire to prevent wear. The silicone pen holder is strong and sturdy, can hold the pen firmly to prevent it from falling and getting lost. Size: The retractable keychain is approx. 5 x 1.6 inches (L x W) with a durable 24 inch (60 cm) wire rope that retracts automatically and retracts smoothly and powerfully after the pen is released. Easy to use: Just attach the metal buckle of the retractable lanyard to the apron or belt loop and then insert the marker, pen, pencil, crayon into the fixed rubber pen holder. Package includes: Heavy duty retractable keychain, simple and generous, you can carry it with you and use it anytime and no longer worry about losing your pens. Multiple uses: The suitable size makes the retractable badge pen holder suitable for holding pencil sharpeners, carpenter pencils, fine-tipped pens, pencils, pens and markers to avoid losing pens or markers. Perfect for surveyors, woodworking, construction, roofing, flooring, serving and more. Color: Silver + black Material: Silica gel Package contents: 4 x heavy duty retractable keychain Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.