bottle cap
cults3d
just bottle cap- inner diameter is 37mm . any one can edit copy of the original design at onshape.com https://cad.onshape.com/documents/fda09b9d3e9ce2750f11c777/w/840cdf8f34f69e54fe117438/e/1f7f39f541d99b0f82047f35 Thanks
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