1. square metal pin button badge 2. Pin on back 3. Rustless 4. Printed on paper 5. ... Various Size a. square metal pin button badge 40*40 23 ... 1. round (25mm, 32mm, 44mm, 50mm, 58mm, 65mm, 75mm etc),2. square(40*40),3. rectangular (23*68, 40*60),4 ... . oval (43*67),5. heart and triangle.b. One button badge machine can make any badges with molds/dies, pin ...