To use the brass tank cap, simply screw it onto the valve of your bottle. The solid brass construction offers durability and a tight seal, protecting the tank , dirt. This cap is suitable for those who frequently use tanks for outdoor cooking, heating, or lighting, ensuring your equipment stays in top condition. Features -Color:Golden -Material:Brass -Size:2.40X2.40X1.50cm/0.94X0.94X0.59in -Note: Suitable for 1LB bottle -Thread damage prevention: shields the threads from potential damage, maintaining the integrity of your tank -Simple attachment: easily screws onto your bottle, allowing for a straightforward and secure attachment process -Leakproof seal: ensures a tight, leakproof seal between the tank and gas grill, enhancing safety and performance -Multipurpose: suitable for various uses including camping, rvs, home use, bbqs, camping stoves, and heaters -Robust construction: constructed from solid brass, offering durability and resistance to wear and tear Package list: 3 x bottle cap