Used replacement part for a Hoover vacuum part that changes height of the base low to high. Attached with 2 snaps. May also fit models U5443-900, U5445900, U5445940, U5447900, U5449940, U5450900, U5451900, U5445-900, U5445-940, U5447-900, U5449-940, U5450-900, U5451-900, U5465-900, U5465-960, U5465-970, U5475-900, U6433-900, U6434-900.. 2 7/8" wide, 3" long, 1" high.