Solid Steel Shaft Collars: 1" I.D.(Inner Diameter), 1 5/8" O.D.(Outer Diameter), 5/8" Width, Zinc Plated with One Set Screw, 136015: Amazon.com: Industrial & Scientific
Stainless Steel Women Slave Rolled Neck Collar Bondage Locking BDSM Metal Choker | eBay
Collars, Size & Weight | Swedish Collar
Amazon.com : Dog-Thing by Talents10 - Dog Training Prong Collar (Large, 3.5mm Thickness), Metal Collar for Large Dog Obedience Training. Better Than a Choke Chain or Other Dog Collars for Dog Walking :
Quikloc Shaft Collar 0-1 inch - QuikLoc All Steel Shaft Collars
The Euros Drape - Stainless Steel Bondage Collar - Serenity in Chains
Collars, Size & Weight | Swedish Collar
Classic Eternity Collar
Choice Stainless Steel Malt Cup Collar for 3 7/8" Cups - 4 1/2" Top Diameter
Stainless Steel Short Link Chain Collar with Round Chain - 3.0 mm [HS64#1091 51112 (55) Choke Collar 3mm] : Prong Collars, Pinch Collars, Dog Training Collars, Curogan Collars, Chain Dog Collars, Fur