Police Zak Tool ZT55 Tactical Stealth Black Extreme Duty Key Ring Holder https://www.amazon.com/dp/B004IX24MW/ref=cm_sw_r_cp_api_I5szAbWRVM82G

Key holder. Easy to take the keys on/off. No fumbling in pockets. They make ones with flaps that stop the keys from jingling too. I like this one because it’s so small on my belt I hardly realize it’s there.