Welcome to Allen Instruments online store Welcome to our online store Seco 25 cm Extension 1.25in SKU 5145-02-A $44.95 In stock Quantity: 1 Add to Bag Product Details Carbon Fiber extensions have 5/8 x 11 female threads on the bottom and 5/8 x 11 male threads on the top to allow more added sections. 25 cm in length. 1.25in outside diameter Save this product for later Favorite