Function and characteristics : ◆Our inner tube is made of the impact-resistant polyester. ◆ The powerful water pipes will withstand water pressure up to 300 psi (21 kgs). 400+ PSI burst rated. ◆ The powerful water hose wear resistance is not easy to be pierced by sharp objects when dragged around the garden. ◆ Water can still circulate when accidently folded. ◆ Due to the water hose have heat and cold and UV resistance, so after the water hose are used they can not only automatically air-dry within 24 hours but they are also not breeding bacteria or moss.