Function and characteristics : ◆ We use an impact-resistant PVC and other composite materials to make our inner tubes. ◆ The powerful water pipes will withstand water pressure up to 200 psi (14kgs). 300+ 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.