Build-Your-Own Hanging D-Adorned Bunny Blossom ring itself is a

Blossom ring itself is a spring clip so you can also remove it from the chain to change for a different center piece

O-Ring measures approximately 1

This does not in any way effect the structural integrity of the necklace  itself

please email us post purchase and we can adjustment the measurement

These slip chain collars feature standard O-Rings

Build-Your-Own Hanging D-Adorned Bunny Blossom ring itself is aHanging D Adorned This piece is made with all matching metal hardware featuring five d rings equidistantly spaced with the middle d ring holding two o rings of different sizes. Sizing notes: We create our collars with the neck circumference given as the smallest hole on the collar with the largest hole being +2". Ex. Neck circumference of 12", collar will be made to 12" 14". Choker Collars are all made to order unless otherwise stated in the item