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• Non Human Operation Damage, Free Replacement ！！ *Please word that upon receipt, please strictly stick to the instructions for set up and use If there are high quality issues, please don't directly comment negatively Contact customer service as quickly as possible, send us images or videos, and eligible free of charge renewal Due to improper own operation or regular consumption damage, it is not within the scope of replacement We provide discount for giant quantity Welcome to touch with us! This inside tube cannot be inflated a lot when it is not put in in the outer tire, otherwise it's going to trigger irreversible damage! Please use a handbook air pump instead of high-speed air filling kit similar to air compressors or pumps inflating the tube, flip the valve inward (towards the center of the tire circle) Inflate a small quantity until the inner tube is round; this stress ought to be less than zero bar/8 PSI Tire inflation pressure must not exceed five bar/72PSI When utilizing

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