They effectively seal off unused or open ends, protecting from debris and damage none tool required, directly installation by hand Builted in rubber sealing washer to water leakage Features round female thread hose connector that allows for secure and easy connection to hoses or pipes Make of PVC, which is thickened and strong, enduring, abrasion resistant, cold resistant Mainly used for sealing joints and pipes and are often widely used in various industry such as water, construction and power, Manufacturer: LiRRvb