ITEM NAME:1/4 D-Ring Convert Screw Pull Ring Adapter For Camera Tripod Monopod #gib Store Home Promotion Hot Item Add to Fav.Shaft Length: 17mm(Included thread). Add to Fav. Head Thickness: 4mm. Light weight and strength high. Color: Silver. For connecting various types of DC,DV. 12 months Warranty. Toys, Hobbies.