Must-have accessory for coaches, referees & training athletes to ensure proper ball response * Easy-to-read slide scale measures to 20 PSI in 0.5 PSI increments (.1 to 1.4 Bar), 5"L w/out needle * Steel needle with corrosion resistant nickel finish inserts smoothly into rubber bladder * Needle threads securely into pen, 2 needles included; chrome-plated steel pen with handy pocket clip * Accurate measurement of basketballs, footballs, soccer balls & other low pressure air-filled items