Keep your hooks, clips and hangers in the best possible working order by replacing them often with Command Adhesive Replacement Strips. Marked on the outside of the package is the exact item they fit, so there's no hassle and no guessing. Read Caution and Note on back of package before use. Poster Strips 12pc- Poster strips do not stain, damage walls or posters. Strips measure approximately 5/8"x 1 7/8", does not need to be used in conjunction with clips or hangers.