Are you looking for a professional and reasonably priced air release pen refill? Are you looking for a sturdy, trustworthy tool that can do multiple tasks at the same time? If so, please look no further! Our professional air release pen refill will surely meet your needs. It is one of your . Features -Color: White. -Material: ABS, Iron. -Size: About 10.00X0.50X0.50cm/3.93X0.20X0.20inch. -Choose sturdy ABS and iron production, not easy to break or deform. -Lightweight and portable, easy to use, convenient for you to replace at any time. -It can provide your air release pen with better working performance, and it is convenient for it to better get rid of the bubbles generated when the car is . -The design is reasonable, convenient and practical, and it is a great choice of tool accessories. -It is made with good craftsmanship, has excellent texture, and can serve you for a long time. Package list: 2 Refills