ringpull

Ringpull, also known as a pull-tab, is a metal opening mechanism used on carbonated beverage cans. It consists of a small circular ring connected to a rivet on the can lid. By gripping the ring and pulling upward, the ring pulls on a scored panel of the lid, bending or severing it to create an opening through which the contents can be poured. Depending on design, the ring-and-tab piece may detach from the lid or remain attached after opening.

Historically, pull-tabs were introduced as a simple one-piece opening method but several early designs detached from the can, creating litter and potential hazards. In response, manufacturers developed stay-on tabs, where the tab remains attached and folds into the opening after use. Stay-on tabs became widespread in many markets during the latter half of the 20th century, leading to reduced litter and fewer choking hazards. Modern cans in most regions use stay-on tabs, though detachable pull-tabs or hybrid designs still appear in some products or retro packaging.

Materials and disposal: Ringpull systems are typically made of aluminum, and the tab is designed to remain with the can or pivot away after opening, depending on the design. Both can and tab are generally recyclable as part of the aluminum can stream. Safety and environmental considerations include avoiding ingestion of small parts and ensuring proper recycling to minimize litter and waste.