7 X 7 mm. Cable Chain

This is the same cable chain that is on Amazon http://www.amazon.com/gp/product/B008SKT00A?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00
This is great for the heat bed wires at the rear of bed on my prusa I3 Dual extruder..

Created with Design Spark Mechanical, a FREE and extremity easy to learn and use CAD http://www.rs-online.com/designspark/electronics/eng/page/mechanical

Have a great day. :-)