Simply wrap the tape around the threaded male end of the or connector and screw . Less stickiness on the fingers and easy to remove. Plumbers thread tape have the good characteristics of sealing, corrosion resistance, anti-aging. The seal tapes are compatible with most types of threads for hundreds of applications. Features - Color: Assorted color. - Material: PTFE. - Size: 4.50X4.50X2.00cm/1.77X1.77X0.79in - Thread seal tapes are made of PTFE which has a good sealing capabiity and can resistant corrosion. - Plumbing tape also has a good perfermance towards moisture and acids, they will not easily. - Each package include 30 rolls of thread seal tapes. Enough for you to use a long time. You needn't have to buy again and again. - Each roll of tape has a plastic cover which can procect the tape . - When you finished your work, just place them back to the plastic cover. Package list: 30 x tapes