Bullet jesses and swivel
Small suitable for eyelet size around 5.5 mm or 7/32"  or similar
Medium suitable for eyelet around 7.9 mm or 5/16" or similar
Large suitable for eyelet around 9.5 mm or 3/8" or similar
eagle  eyelet size 11.11 mm to 12.70 mm or 1/2" or similar