Hairpins for elders are appropriate. The specific reasons are as follows: sending hairpins to elders is a traditional gift, which usually represents blessing and respect. If your elders like to wear hairpins, it is a good choice to send hairpins. In a word, it is a traditional gift to send hairpins to the elders, but there are many factors to consider, whether it is appropriate or not. If you are sure that your elders like to wear hairpins and send them on appropriate occasions, then such gifts will convey your blessing and respect.