"M" Class Lightweight Aluminum Bobbin. Click here for more information http://www.handiquilter.com/shop/product/single-ez-wind-slotted-m-class-bobbin-each/
Other Videos in How to Guides
Precision-Glide Carriage Track and Machine Wheel Upgrades (Available March, 2012)
HQ Studio Educator Mindy Powell demonstrates how to install and use the Groovy Board Stylus and Adapter for HQ18 Avanté & HQ24 Fusion.