Calumet 7100 Tripod Kit with 3-way Head, Quick-release Plate Legs lock firmly into place using easily operated clips and there are further clips at the top to set each leg at one of three fixed angles. Split-shaft center column that allows for low-angle shooting. Three-way pan/tilt head with quick-release plate for convenient camera mounting and a safety lock for added security 1/4"-20 quick-release plate