Description:Size & Packaging: The Package comes with 2 pieces of top pivot, bottom pivot and spring clip. Spring Size: 56.5 x 9mm/2.22 x 0.35inch(L*W), Spring Clip Size: 22 x 22mm/0.87 x 0.87inch(L*W), Top Pivot Size: 52 x 14mm/2.05 x 0.55inch(L*W), Bottom Pivot Size: 50 x 14 x 6mm/1.97 x 0.55 x 0.24inch(L*W*D).Wide Application: Folding door hardware for use with 9/16" outside diameter pivot and guides in a 7/8" wide bi-fold door track.Easy to install: Just install the corresponding accessories, no additional drilling, measurement and other adjustments are required when replacing accessories, and the installation and replacement of damaged parts are also simple and quick.Note: If doors are warped, use two sets of aligner, one near the top and one near the bottom to ensure optimal alignment.
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