this one is nice, wife uses it. size small. https://www.amazon.com/dp/B01KLKOQKS?_encoding=UTF8&psc=1&ref_=cm_sw_r_ud_dp_R8NSKKZJ1Z7GB9VZ6SC8 Knog Oi Bike Bell - Original & Luxe Styles, Built in Cable-Clip, Adult/Youth Bicycle Bell (Black, Copper, Brass, Aluminum)

this one also nice, the one i use, in copper

https://www.amazon.com/dp/B005YOMDRU?_encoding=UTF8&psc=1&ref_=cm_sw_r_ud_dp_XWE7V5R1CR74F2RRDXQC Crane Bike Bell, Suzu Bicycle Bell, Made in Japan for City Bikes, Cruisers, Road Bikes or MTB, Fits Bars diameters 22.2 to 26.0mm

bars are 22.2mm