The Dynarex Resp-O2 Drain Sponge, 4 x 4 Inch, Nonwoven, 6-Ply, Sterile, Pre-Cut, 25 Count is an at home health product designed to provide superior comfort and functionality. The Dynarex Resp-O2 Drain Sponges are available at Honest Medical and ship for a low cost. We carry Dynarex Resp-O2 Drain Sponges in multiple warehouses across the nation to reach most customers in 2-3 business days.