Some rubber grommets.

Metal eyelets and eyelet setting tool.

Grommets and eyelets are metal, plastic, or rubber rings that are inserted into a hole made through another material. They may be used to reinforce the hole, to shield something from the sharp edges of the hole, or both. Some rubber grommets. ... Some rubber grommets. ... Eyelets and eyelet tool. ... Eyelets and eyelet tool. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. ... This article or section does not cite any references or sources. ... Latex being collected from a tapped rubber tree Rubber is an elastic hydrocarbon polymer which occurs as a milky colloidal suspension (known as latex) in the sap of several varieties of plants. ...

Grommets as reinforcement or crafting

Grommets are used to reinforce holes in leather, clothing, shoes, and other fabrics. They can be made of metal or plastic, and are easily used in common projects, requiring only the grommet itself, a grommet-setting tool (a metal rod with a convex tip which usually comes with the grommets when you buy them in a store), and a hammer. Fancier grommet presses (as shown in the picture) exist but generally a hammer and the grommet-setting tool works at least as well for setting just a few grommets. Their most common usage is to strengthen the holes for bootlacing but are also good for making corsets and other laced clothing, plus curtains and other household items that require hanging from hooks. The grommet prevents the cord from tearing through the hole, thereby providing structural integrity. Small grommets are also called eyelets, especially when used in clothing or crafting. When using eyelets for crafting, they are generally used in a decorative fashion. Modern leather-working tools Leather is a material created through the tanning of hides and skins of animals, primarily cattlehide. ... Clothing protects the vulnerable nude human body from the extremes of weather, other features of our environment, and for safety reasons. ... shoe for right foot A shoe is a piece of footwear for humans, less than a boot and more than a slipper. ... “fabric” redirects here. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. ... This article or section does not cite any references or sources. ... A modern hammer is directly descended from ancient hand tools A tool or device is a piece of equipment which typically provides a mechanical advantage in accomplishing a physical task. ... A claw hammer For other uses, see Hammer (disambiguation). ... This article needs additional references or sources to facilitate its verification. ... Fashion illustration by George Barbier of a gown by Jeanne Paquin, 1912, from La Gazette du bon ton, the most influential fashion magazine of its era. ...

Grommets used as shielding

If metal or another hard material has a hole made in it, the hole may have sharp edges. Electrical wires, cord, rope, lacings, or other soft vulnerable material passing through the hole can become abraded or cut, resulting in damage. Instead, a rubber, plastic or plastic coated metal grommet can be inserted into the hole and the wire (etc.) passed through the grommet. The smooth and sometimes soft inner surface of the grommet shields the wire from damage. This is usually done wherever wires pass through punched sheet metal. Molded and continuous strip grommets are manufactured in a wide variety of sizes and lengths expressly for this purpose; they are usually a single piece which can be simply inserted by hand. Two-piece hard plastic devices are available which also grip the wire that passes through; this is called strain relief and is often used on power supply cords that attach to a piece of equipment, to prevent a tug on the wire from pulling on the electrical connections inside the equipment. Lightning strikes during a night-time thunderstorm. ... This article or section does not adequately cite its references or sources. ... Look up Cord on Wiktionary, the free dictionary Cord has several meanings: String or Rope Cord Automobile Vibrating cord A measurement of the volume of firewood A power cord or extension cable In electronics, a cable Cord, a former American car marque founded by Errett Lobban Cord. ... Coils of rope used for long-line fishing A rope (IPA: ) is a length of fibers, twisted or braided together to improve strength for pulling and connecting. ... Abrasion on the palm of a right hand, shortly after falling Abrasions on elbow and lower arm, still healing. ... Sheets of stainless steel cover the Chrysler Building Thin sheets of gold leaf Sheet metal is simply metal formed into thin and flat pieces. ...

Surgical grommets

A grommet can also be a small teflon tube inserted into the eardrum to allow air to pass through it into the middle ear to alleviate the hearing loss and pain that can occur with repeated ear infections, a condition sometimes known as glue ear. This is also a correcting measure for a patulous Eustachian tube (when air moves to and from the middle ear with each breath making the eardrum flap). Teflon is polytetrafluoroethylene (PTFE), a polymer of fluorinated ethylene. ... The tympanic membrane, colloquially known as the eardrum, is a thin membrane that separates the external ear from the middle ear. ... The middle ear is the portion of the ear internal to the eardrum, and external to the oval window of the cochlea. ... Otitis media is an inflammation of the middle ear: the space behind the ear drum. ... Otitis media is an inflammation of the middle ear: the space behind the ear drum. ... The Eustachian tube (or auditory tube) is a tube that links the pharynx to the middle ear. ...

See also

• Stent
• Tympanostomy tube