Amazon.com: Weewooday 4 Pieces D-Cell Battery Holder Series or Parallel Physical Science Plastic D Size Battery Case Physics D Battery Holder : Electronics
Kidder - Science Kits, School Project Supplies, Clock Parts - D Cell Battery Holder with Series & Parallel connector - EA - Cat# 70-32-176
D-Cell Battery Holder – Arbor Scientific
D-Cell Battery Holder – Arbor Scientific
Amazon.com: E-outstanding D-Cell Battery Holder 4PCS D Size Battery Holder Box Container with 2Pin Series or Parallel : Electronics
D CELL BATTERY HOLDER & JOINER | UNI1-BTHD01 | Macalaster Bicknell Company of NJ