1.[Product Contains] Main body, domed nut, O ring, and steel locknut are included in the package. 1 inch 180 Degree connectors in all, 15-PK. 2.[ Material] Liquid-tight non-metallic PVC conduit fittings connectors are made of nylon 6, which is impact resistant, rust-resistant, resistant to oil, sea water, and mild acids. It resists strong tensile forces as well. It has 94V-2 flame retardant grade and 125 °C temperature index. 3.[Quick Installation] Without using any tools, non-metallic conduit connectors can be easily attached to the conduit, tube, or electrical box. The connector ferrule is attached to the conduit or tube by simply pushing it onto it and tightening the domed nut. 4.[Wide Applications] It can be utilized in construction sites, refrigeration equipments, machinery and equipments, HVAC equipments, different pumps, household equipment, marine equipment, printing equipment, motors and controls, and outdoor lighting equipment.