Bicycle Puncture Protection Insert Prevent Injury Bike Tire Inner Tube Pad Bicycle Rim Protector Liner Cycling Parts Accesseries. Features: Enhanced Control, High-Density EVA, Puncture Protection, Rim & Tire Defense, Stability Upgrade. Specification: Origin: Mainland China, Main Material: Composite EVA, Color: Orange, Style: 25-32c, 1.9-2.3, 2.3-2.5.