Material: The retractable pencil holder is made of metal carabiner clip and silicone pen holder, the rope is steel wire to prevent wear and tear.The silicone pen holder is strong and sturdy, can firmly hold the pen to prevent falling and losingSize: The retractable keychain . 5 x 1.6 inch (L x W) with durable 24 inch (60 cm) wire cord that retracts automatically and pulls back smoothly and strongly after the pencil is releasedEasy to use: Just fix metal buckle of the retractable lanyard to the apron or belt loop, and then insert the marker, pen, pencil, chalk into the rubber pen holderPackage include: Retractable keychain heavy duty, simple and generous, you can carry it with you and use it at any time and no worry about losing yourMultiple usage: the proper size makes the retractable pen holder suitable for holding pen sharpeners, carpenter pencils, fine-tip , pencils, and markers to avoid losing or markers. Great for surveyors, woodworking, construction, roofing, flooring, serving, and morecolor:Silver + blackMaterial:Silica gelPackage Contents:4 x retractable keychain heavy dutyOnly 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 measurement allowed error is +/- 1-3cm.