Say goodbye to flat tires and hello to comfy rides! The EcoEarth Inner Tubes are made using thick butyl rubber to ensure comfy ride even on most rugged terrains. It features standard scrader valve system and works well with all brands & models including BoB Revolution, Graco, Mountain Buggy & Thule Urban Glide to mention a few. Designed for strength & durability, our inner tubes offer enduring performance for uninterrupted jogging routines. Above all, we are health conscious and make our tubes completely free of harmful chemicals, guaranteeing your peace of mind and pure joy in every ride.