Lanxri 1/4"-20 Male To 1/4"-20 Female Counterweight Screw Adapters Stainless Steel Made 39.5mm and 28mm Diameter for DSLR Camera Accessories (2 Pieces) Product Highlights Screw A: 1/4" female to 1/4" male, 28mm in diameter and 21mm in height Screw B: 1/4" female to 1/4" male, 39.5mm in diameter and 21mm in height Counterweight screw for DSLR camera tripod and photographic accessories Material: stainless steel Product Description The screw adapter is made of high quality stainless steel . It fits standard 1/4"-20 threaded hole and 1/4"-20 male thread. Net Weight: 297.5 g You Get: 1 x 1/4"-20 Male To 1/4"-20 Female Counterweight Screw Adapter 28mm Diameter 1 x 1/4"-20 Male To 1/4"-20 Female Counterweight Screw Adapter 39.5mm Diameter Before you place an order, please provide me with English information to facilitate our delivery and logistics