6 x Double Flanged 1.5mm Diameter Bars 20 22 24mm
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6 x Watch Spring Bars [2 x 20mm 22mm & 24mm].
Rust Free Stainless Steel tube & spring.
Middle tube section is 1.5mm Diameter.
PLEASE NOTE - All sizes quoted are for the bars fully compressed. Centre section of tube will be smaller than the compressed size because these are flanged spring bars and each end will slightly protrude each side of the middle tube.