Features: There are 2 tyeps, one is with storage , another without, selecting based on your needs. While airing down your tire you can instantly check the tire pressure during deflation by simply sliding the collar in. Instantly read the PSI then slide the collar back out to keep deflating. This heavy-duty 4x4 tire deflator is a precisely designed, all-in-one system that removes the for valve core for fastest deflation and allows you to stay in control to accurately attain your desired PSI. Our tools are heavy duty and made for tough so you can get the job done and get back on the road. Properly inflated tires provide better performance in all weather conditions, decreasing the likelihood of flats, explosions, and crashes. Specifications: Material: Metal+Plastic Size: 175x117x47mm/ 6.89x4.61x1.85 in Power Supply: 2x AAA battery Package Includes: 1 Set Tire Pressure Gauge note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.