Amazon.com: MDF ProCardial ERA Cardiology Lightweight Dual Head Stethoscope with Adult, Pediatric, and Infant-Neonatal Convertible chestpiece - Light Blue Tube - Black Finish (MDF797XB14) : Industrial & Scientific
Amazon.com : (8-Pack) CalPalmy 11” x 14” MDF Boards - 1/4” Thick Boards for Carpentry, Interior Design, Hobby Crafts, and More - with Smooth, Unfinished Sides and Sanded Edges : Arts, Crafts & Sewing