Amazon.com : (2 Pcs) 55-58MM Step-Up Ring Adapter, 55mm to 58mm Step Up Filter Ring, 55mm Male 58mm Female Stepping Up Ring for DSLR Camera Lens and ND UV CPL Infrared Filters :
Step Up Ring - 55mm-72mm
Metric Wear Guide Ring 55mm ID x 60mm OD x 5.5mm W x 2.5mm CS Price for 1 pc - OringsandMore
Caruba Step-up/down Ring 55mm - 62mm!
Black Label Belowed C-Ring - 55mm (2,25"), 29,00 €
H&Y Firter Adapter Ring 55mm AR55 - 写真プロ機材ショップのTPC
JJC Step-Down Ring Lens Adapter 67-55mm - CameraStuff