Here is an introductory video explaining the new patented designed Frame Grip. Works on both wood and plastic bee frames. Comes in three models: Universal (for both wood and plastic) Wood Only and Plastic Only. Has several more unique features such as a Locking-Arm, positioning guides.
Get a better working understanding of the product. Here is a functional video of this fantastic Patented Mule-Grip™
Press on the link below