DT Squorx Pro Head nipples combine ease of use, lightweight and optimum performance in a single product. The DT Pro Head shape combined with both a torx and a square tool interface makes wheel building a lot easier. The spherical contact surface aligns the nipple perfectly with the spoke. All brass nipples are recommended for e-bike use.Specifications:- Product type: Squorx Pro Head- Material: Aluminum- Thread: 1.8 / FG 2.0- Length: 15 mm- Weight: From 26 g for 64 nipples.Technology:Nipple Technology:- The interface between spoke and nipple is highly important for the durability of a wheel. A good reason for DT Swiss to continuosly improve and fine-tune the DT Swiss nipple range in line with the different requirements of the various cycling-disciplines. DT Pro Lock® Technology:- DT Pro Lock is a process where a dual compound, adhesive liquid is injected into the nipple thread, allowing for extremely durable wheel builds. By threading the nipple onto the spoke the adhesive is activated and starts to harden. Re-truing the wheel is still possible after the adhesive has hardened completely, with only a minimal decrease of its thread-lock function.