Description: Features: 100% brand new and high quality The perfect solution for running wires through sheet metal, frame, firewall, and other electrical applications. Designed to keep wires or any other materials from rubbing against sheet metal, plastic, etc. The sealing ring is made of superior rubber. Variety of thickness and size are all in one box, very convenient to use. Heat-resisting, mineral oil-resisting, wear-resisting. Suitable for pipes, hydraulic, air, gas, and many other industrial applications. This box also can put a few small adorn article and fish hook, buttons and notion class. In addition, it can put or hang, more convenient to carry. Specification: Material: Plastic, Rubber Package size: 12x10x3cm(4.72x3.94x1.18in)(approx) Color: Black Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch With retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 50 pcs x 7.14mm Rubber Grommet 40 pcs x 9.53mm Rubber Grommet 30 pcs x 12.07mm Rubber Grommet 20 pcs x 15.88mm Rubber Grommet 10 pcs x 19.05mm Rubber Grommet 10 pcs x 22.23mm Rubber Grommet 10 pcs x 25.40mm Rubber Grommet 1 x Storage Box