My son bought a volleyball and kicked it, but he said the ball would hurt his forearms when he kicked the ball. I felt like there was too much air in the ball but I didn't know what psi the ball was at. So I bought this pump and gauge kit. We checked the air pressure in the volleyball and found it was 4 pounds over pressure! Here the safety valve has closed. With the needle still in the bullet, we pressed the button to release the pressure until the desired pressure was reached. With a volleyball with the right pressure, my son no longer complained about pain in his forearms when hitting the ball. Another reason to buy this combo instead of separate ones is that it helps keep the pump and meter in the same place, reducing the chances of you grabbing the pump but forgetting the meter. Hope that helps.
Smart bracelet Xiaomi Mi Smart Band 6 CN, black
50 Review
6 Pcs Reflective Bands: High Visibility Running Gear For Women Men - Safety Straps Bracelets For Running, Cycling & Walking
46 Review
Foxelli Wading Boots: Lightweight, Rubber Sole Fly Fishing Shoes For Men - Grey
47 Review
Portzon Women'S Waist Trainer: Weight Loss, Sweat Belt, Sauna Trimmer, Tummy Toner, Lumbar Support
47 Review