Stanley series 9205 commercial stainless steel concave wall door stop bumper with concave rubber tip. 1-1/8 inch projection by 2-1/2 inch wide. Steel mounting plate. 1 pack used on walls to help prevent door knob damage. Durable rubber bumper ensures long operating life. Includes anchor for drywall applications. Concave design prevents interruption with door latch and reduces risk of locking or unlocking door knobs with push buttons or turn latches.