Dual Function Door & Patio Security Bar, Rugged 20 Gauge Steel Construction, For Hinged Or Sliding Doors, Prevents Unwelcome Entry, On Hinged Doors Brace Bar Under Door Knob Down To Floor Where A Pivoting Ball Joint & Padded Foot Assure Full Contact With The Floor Without Scratching, In Sliding Doors A Removable Pin Releases The Yoke End To Allow Firm Seating Between The Door & The Jamb.