Please Note - This ball head conversion kit only works with bog deathgrip tripod version, not works with bog deathgrip infinite tripod version ^^ The converter and arca saddle mount plate are made of 6061-T6 aluminum, lightweight and sturdy, fully anodized in matte black for rugged, corrosion-resistant performance in the field ^^ The 3/8" mounting bolt on the converter is made of stainless steel, sturdy and durable, not easily worn, compatible with ball heads, fluid heads, convert your BOG DeathGrip tripod into a fully functional equipment for shooting or camera use ^^ Arca saddle mount plate is perfectly compatible with BOG saddle, and designed with a 3/8'' threaded hole, the BOG saddle can be directly mounted on tripods ^^ The arca saddle mount plate is designed with safety stop screws to prevent equipment slippage even if loosens under heavy use