Specifications: High quality silicone is durable and helps prevent bending. These nozzles feature a universal screw fitting compatible with standard sealant cartridges. Ideal for use in door and window installation, as well as general maintenance tasks such as repairing voids, gaps, wall tiles, floor tiles, and flooring. Type: Caulking Nozzle Material: Silicone Features: Universal, Wide Application, Easy to Install, Durable Outer Diameter: 1.9 cm / 0.75" (Approx.) Inner Diameter: 1.5 cm / 0.59" (Approx.) Notes: Due to variations in lighting and screen settings, the actual color of the item may differ slightly from the images. Please allow for minor dimensional differences due to manual measurement. Package Includes: 20 x Caulking Nozzles (Other items not included)