All kinds of gear with 1/4 inch. Widely using on camera accessories such as Tripod, Monopod, Ballhead, light stand, video light. It is a definitely strong tool for bringing a better usage to your photography rigs! 5 Pieces 1/4 inch to 3/8 inch Female spigot adapter Specifications: design for 1/4 inch to 3/8 inch Female spigot adapter. Dimensions: max length 28 mm, max width is 16 mm. Side: 1/4" Female thread,3/8" Male thread. 5 Pieces 1/4 inch to 3/8 inch Male Threaded Screw Adapter Specifications: design for 1/ 4 inch male threaded screws. Dimensions: Max length is 20 mm, max width is 16 mm. Material: made of metal and silvery plated surface. 5 Pieces 1/4 inch to 3/8 inch (Female to Male) Screw Adapter Specifications: design for 1/4 Female-3/8 male screw adapter. Dimensions: male thread:3/8", female thread:1/4". Material: metal, silvery plated surface. Package Content: 5 x 1/4"Female-3/8"Female spigot adapter 5 x 1/4"male -3/8"male screw adapter 5 x 1/4"Female-3/8"male screw adapter 1 x Free Cleaning cloth

• That base is UNC 3/8 screw (PTZ camera or parent), can be connected to the UNC 1/4 "platform or quick release plate.
• The bottom of the screw hole is 3/8 inch hole, and cloud platen or fast loading plate of the screw is 1/4 inch small screws, with this screw, everything will be easily solved.
• Thread Adapter with female 1/4" thread to male 3/8" thread, compatible to Lens Plate Button Heads, Arca Swiss Type Button Heads.
• Made of metal, solid and durable, fit as well as original reducer.
• For camera tripod or quick release plate many purpose. Please check the size before ordering.

That base is UNC 3/8 screw (PTZ camera or parent), can be connected to the UNC 1/4 "platform or quick release plate.Longruner