Schwalbe AV7+AP Air Plus

"The Schwalbe AIR PLUS bicycle inner tube Nr. 7+AP is the ideal choice for anyone looking for a durable and reliable inner tube for their 20 inch bicycle tires. With an ETRTO-Gru00f6u00dfen of 54/70-406, it fits a wide range of bikes perfectly and ensures optimum riding pleasureu00fcgen. Thanks to the increased wall thickness, the tube holds the air for much longer than conventional models, which means that the tires need to be pumped up less often."
"Another advantage of the Schwalbe AIR PLUS is its excellent puncture protection. The robust construction offers above-average protection against punctures and damage, so you can go on your daily rides or longer tours without any worries. This inner tube is a must for any cyclist who values quality and durability"