Safety 1st 48394 Grip Twist Door Knob Covers (4 Pack) the 4 door knob covers help keep little ones from entering parent-only rooms. their sleek modern design blends in with any home decor features the grip'n twist door knob access to door knob for easier grip they glow in the dark for nighttime use. 4 white in color door knob covers easy to clean just wipe with a damp cloth and dry fits standard door knobs instructions for installation: separate halves by desengaging snaps reassemble halves around door knob making sure all 4 snaps are securely fastened to open door, grip door knob through holes in door knob cover and turn knob