FeedBack Sports Biolever POP Display. Introducing the Biolever tire levers crafted from biobased nylon for a sustainable yet functional design. These compact nesting levers are easy to carry and feature optimized hook geometry for effortless engagement with tight tire beads. The reinforced bead hook enhances durability while the ergonomic curved grip maximizes leverage and includes spoke slots for stability during use. Tested to meet high strength benchmarks Biolevers are built to last for years of reliable performance.