It is the buyers responsibility to examine all items to determine if an item is safe for use The buyer accepts all responsibility for use of items purchased
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A painfully cute item - a little box that is a pair of pump clips. One is a rather typical looking umbrella clip. The other clip is the "female" for the really old type of frame pump that has an end that doesn't really nestle into the frame. We figure most folks will just use the typical umbrella clip. The box is marked 28, but to be safe we installed on a typical 1 1/8" = 28.6mm tube and it went on just great. So this should work both on typical as well as French (metric) tube frames. New in the cute box.