These are action adjustment saddle risers with a "U" tip which rides in the "U" groove on the tremolo body top. The other saddle riser uses a "V" tip and rides in the "V" groove on the tremolo body top.

Length: 0.0000 in
Width: 0.0000 in
Height: 0.0000 in
Weight: 0.100 oz
Packaging: 0.0000 kg
Units in box: 1
Parts by Make/Model > Fender Parts > System 2 - Japan
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Parts by Type > Saddles > Saddle Hardware