High strength carbon steel construction ensures durability through heat treated hardening, eliminating joint loosening while maintaining shape integrity during intensive nipple adjustments Compact enough for saddlebags for garage use, this pocket sized wrench handles tension adjustments during commutes, races, or post ride with efficiency Ideal for cyclists, bike mechanics, and outdoor enthusiasts requiring for frequent wheel truing or workshop maintenance tasks Professional Triangle 6 Slot Wrench Engineered with triangle grip and six common size slots ( covering 3.2mm 3.3mm 3.5mm) for stable control and versatile compatibility with mountain / road bike maintenance Its ergonomic edges slippage on stubborn nipples, making it an essential bike tool upgraded for professional wheel alignment, Manufacturer: ZUJIABAO