A 1/4 screw is included to convert 3/8 screw holes into 1/4 screw holes. The product comes with 1/4 Alaipositioning holes to firmly lock the equipment and effectively preventreversal Can choose the universaltransferseat, suitable for tripod, selfie stick, after installation can be 180° pitchadjustment Multiple types are available to enrich your machine Small and delicate, take with you when you travel 3/8 to 1/4 design, the product comes with a 3/8 screw hole can be used directly with 38 screw equipment Aluminum alloy product, suitable for most camera expansion accessories Thsurface of the product is sandblasted to make it more