Wooden Camera Canon C100/C300/C500 Handgrip Relocator with ARRI Rosette has been discontinued, here are some related products you might like:
Wooden Camera Hand grip relocator for Canon C100, C100mkII, C300, C300mkII, and C500 that allows for the Canon control handle to be attached to an ARRI standard rosette. Works great with Rosette Bracket to attach to 15mm LW rods. Also great with Shoulder Rig v2 for comfortable handheld shooting. Connector interface allows all controls to be passed back to camera body.