Material: Top Quality 304 Stainless Steel， Never Rusty.
4 size Clamp Ring for choose:
Inner diameter of Clamp Ring approx. 38mm，43mm，48mm and 52mm.
Inner Diameter of Cage approx.38mm
Length of Cage approx.60mm
Caution: 4 size clamp ring for choose， please leave a message which size you like， or we will deliver 48mm for you.
Notice:We strictly ensure your privacy， take the message confidentiality and secret packaging.
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