【Himiway Bike Inner Tubes】Size:AV33mm (Regular valve).The Himiway tube is suitable for most mountain bikes and is the most widely used size Currently on the market, compatible with 27.5" x2.5 tires.

【High Quality】Our bicycle tube​ made of premium butyl material,with better sealing performance, ozone resistance, aging resistance, shock absorption, electrical insulation.Every tire tube produced has undergone strict quality inspection and is durable.

【Easy to Install】Installation is quick and easy. Including 2pcs plastic tire lever, made it super easy to replace tubes! Without it the job would be a nightmare! They can aid installing the tire over the tube without nicking either the rim or tube. Please follow inflation guide when airing a tire from a complete flat. Save time and effort, replace the old tire tubes in a few minutes.

【Safe and Comfortable】After replacing the butyl rubber tube, it absorbs the impact on the uneven road surface, making riding more comfortable and safe. It is heat resistant and stands wear and tear for daily use.

【Important Note】Please confirm the size of your bike tire before you buy.When changing a bicycle inner tube, be sure to add a little air before installing it. This gives it form so it doesn't get twisted or bunch up which may cause a pinch flat. Inspect for an even bead of the tire to the rim on both sides.