Thick, flexible vinyl caulking cap grips snuggly to the nozzle to keep moisture and solvents in and air out. Helps prevent open caulking tube from drying out. Reusable. One size fits all. Material: Vinyl Color: Red Type: Cap Warning: This product can expose you to chemicals DI-2-ethylhexyl phthalate (DEHP) and DI-isononyl phthalate (DINP), which are know to the State of California to cause cancer and birth defects or other reporductive harm. For more info go to www.P65Warnings.ca.gov -