1. PRODUCT SPECIFICATION: The tube is suitable for most kids mountain bikes and is the most widely used size Currently on the market, compatible for 16 inches X 1.75 to 2.125 tires. At the same time, the inflation valve is adopted 32mm standard schrader valve. 2. REINFORCED VALVE DESIGN: We made a statistics. Among the cases of tube leaks and tears, 70% occurred at the interface between the valve stem and the tube. our inner tubes are thicker at the contact interface, So the inner tube of hapleby is a tear-resistant reinforced valve design. 3. THICKER BUTYL RUBBER: The conventional tube sidewall thickness is 0.75-0.98MM, but our sidewall thickness is 1.12MM, which is thicker than the sidewall on the market, so it is more puncture resistant and strong air tightness. meantimes, with thick butyl rubber that absorbs shocks, you won’t feel the bumps and hollows, add comfort to your ride. 4. MORE DURABLE: Every tube produced has undergone strict quality inspection and is durable. if the tube is not damaged by sharp objects, it can be used more than 2000 miles. 5. PACKAGE INCLUDING: Each gift box contains 2PCS valve cap, 2PCS tire levers and 2PCS tube, the 2PCS tire levers that came with can save a lot of mounting or unmounting time. These tube are Cheaper than buying in local big box store, my limited experience is that tube replacement is simpler and easier than tube repair, so replace the tube, don’t repair it. You just need to enjoy the most fun of parent-child time, and the quality of the pipe will be checked by us. Product Specification
Material: Butyl Rubber
Size: 16 inch×1.75-2.125
Valve Type: Schrader Valve
Valve Length: 32mm
Tube Color: Black

Lifetime Guarantee
Our products have been tested by IQC and OQC, 1 year unlimited warranty.
If, for any reasons, you don't absolutely love your professional bike inner tubes,
just return it. We'll refund every penny (or replace it, if there is a problem).
This is our confidence in the quality of our products.

Package Including
2PCS*Bike Tube
2PCS*Valve caps
2PCS*Tire Levers