Shop › Rouge O-ring Studded Collar (thinner) Black Image 1 of 3 Image 2 of 3 Image 3 of 3 Rouge O-ring Studded Collar (thinner) Black $64.99 Leather collar with riveted studs measures 20 in. long by 1 in. wide. Add To Cart Added! Leather collar with riveted studs measures 20 in. long by 1 in. wide.