Features: Universal adapter, with 1/4 "ARRI positioning screw hole and 1 3/8" ARRI positioning screw hole, has powerful expansion function and suitable for most scenarios. Made of aluminum-alloy, CNC-processing, anodizing treatments, anti-falling, wear-resistant, full of durability. Small and exquisite, easy to carry and use. It can be used with tripod strange hands to expand more accessories. Additional hexagonal wrench with tool is used to reinforce and loosen the product. Specifications: Material: Aluminium-alloy Type: Black, Double Layer, Double Layer Rotatable(optional) Size: Mixed Size Screw Port: 1/4" 3/8" ARRI Locating Screw Holes Note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitor resolution. Package includes: 1Pc Screw Adapter