Circular ESF starter kits are available to simplify inventory selection and are available for the CESF system and the mini CESF system. The mini CESF system is built around 4mm threaded rods and fasteners while the standard CESF system is built around 6mm threaded rods and fasteners.

The mini circular ESF starter kit is popular for cats, small dogs, avian and exotic patients.

Circular ESF starter kits function well in medium to large patients and come in two configurations dependent upon patient requirements.