micro rings, silicon rings,copper rings

Whether you're a salon owner or a mobile hair dresser, stock up on your supply of micro rings with this set of 1000 black rings for I shaped extensions.
Colour: all kinds of colour
Material: aluminum、silicon、copper
Usage: best for use with I shaped extensions
Ring inner: thread screw type
size：Outer ring diameter、Inner ring diameter、high. unit: mm
                   aluminum rings：45-30-30；35-20-20；40-27-27

                    silicon rings：45-30-30

                    copper rings：34-30-60；32-28-60；28-23-70；32-22-45

Pack size: 1000
Brand new and unused
screw thread or not 

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