Frost King UDB77W Slide On Door Sweep & Draft Stop, White, 36"Frost King 36" Slide On Door Sweep and Draft Stop fits most doors and works on all floor surfaces. Reduces Energy Loss and Keeps Insects Out. Keeps warm air out in the summer and cold air out in the winter. The sweep and fins block out drafts and dust. Saves energy and money. Size: 36" Color: White Slide on door sweep and draft stop Cut to fit, just slide under door Fits most doors and works on all floor surfaces Reduces energy loss Keeps insects out.