The Topeak Valve Extender Set extends the reach of two-piece Presta valves by 28 mm for easier inflation and precise pressure adjustments. Each extender is precision-machined from aircraft-grade aluminum for superior strength and minimal weight, and the set includes an aluminum valve tool for installing or removing valve cores and extenders. To ensure a reliable air-tight seal, Teflon tape is recommended on threads during assembly. Lightweight at just 1.4 g per piece and compact at 3.8 × 0.6 × 0.6 cm, these extenders deliver professional quality in a portable design.