The 15 mm LW Baseplate system is designed to match the CANON C70 optical center. The two pieces base plate features an adapter plate and a 15 mm lws rod base. Strongly mounted with two 1/4-20 screws. The 15 mm LW baseplate comes with a pair of 15 mm rods 12” and the bottom of the plate features several 1/4″-20 and 3/8″-16 mounting holes for mounting and balancing your camera on equipment like a tripod. A detachable lock system to secure and hold in place your 4K FULL HDMI cable is included.